MACOM Technology Solutions (MTSI) 10-Q 2 Feb 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Jan. 02, 2015	Jan. 30, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	2-Jan-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	MTSI
Entity Registrant Name	M/A-COM Technology Solutions Holdings, Inc.
Entity Central Index Key	1493594
Current Fiscal Year End Date	-21
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		47,788,456

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Jan. 02, 2015	Oct. 03, 2014
In Thousands, unless otherwise specified
Current assets:
Cash and cash equivalents	$48,335	$173,895
Accounts receivable, net	79,452	75,156
Inventories	89,208	73,572
Deferred income taxes	35,956	35,957
Other current assets	25,851	14,769
Total current assets	278,802	373,349
Property and equipment, net	59,393	50,357
Goodwill	95,764	10,784
Intangible assets, net	272,325	142,633
Deferred income taxes	46,381	84,629
Other assets	24,626	20,482
TOTAL ASSETS	777,291	682,234
Current liabilities:
Current portion of lease	581
Current portion of long-term debt	3,500	3,478
Accounts payable	32,636	29,797
Accrued liabilities	34,544	34,248
Income taxes payable	418	865
Deferred revenue	219	17,258
Total current liabilities	71,898	85,646
Lease payable, less current portion	873
Long-term debt, less current portion	442,375	343,178
Warrant liability	26,409	15,801
Other long-term liabilities	8,714	9,042
Total liabilities	550,269	453,667
Commitments and contingencies (Note 10)
Stockholders' equity:
Common stock	48	48
Treasury stock	-330	-330
Accumulated other comprehensive loss	-1,147	-1,354
Additional paid-in capital	382,268	377,714
Accumulated deficit	-153,817	-147,511
Total stockholders' equity	227,022	228,567
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$777,291	$682,234

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jan. 02, 2015	Jan. 03, 2014
Income Statement [Abstract]
Revenue	$114,864	$84,154
Cost of revenue	60,663	48,432
Gross profit	54,201	35,722
Operating expenses:
Research and development	19,474	12,430
Selling, general and administrative	25,599	19,383
Restructuring charges	0	13,090
Total operating expenses	45,073	44,903
Income (loss) from operations	9,128	-9,181
Other income (expense)
Warrant liability (expense) gain	-10,608	1,282
Interest expense	-4,723	-586
Other income	375	78
Total other income (expense)	-14,956	774
Loss before income taxes	-5,828	-8,407
Income tax provision (benefit)	478	-1,591
Loss from continuing operations	-6,306	-6,816
Loss from discontinued operations		-2,105
Loss attributable to common stockholders	($6,306)	($8,921)
Basic loss per share:
Loss from continuing operations	($0.13)	($0.15)
Loss from discontinued operations		($0.05)
Loss per share - basic	($0.13)	($0.19)
Diluted loss per share:
Loss from continuing operations	($0.13)	($0.15)
Loss from discontinued operations		($0.05)
Loss per share - diluted	($0.13)	($0.19)
Shares used:
Basic	47,606	46,517
Diluted	47,606	46,517

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Loss (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Jan. 03, 2014
Amounts Reclassified Out Of Accumulated Other Comprehensive Income Loss [Abstract]
Net loss	($6,306)	($8,921)
Foreign currency translation gain	207	45
Total comprehensive loss	($6,099)	($8,876)

Condensed_Consolidated_Stateme2

Condensed Consolidated Statement of Stockholders' Equity (USD $)	Total	Common Stock [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]
In Thousands
Balance at Oct. 03, 2014	$228,567	$48	($330)	($1,354)	$377,714	($147,511)
Balance, Shares at Oct. 03, 2014		47,548	23
Issuance of common stock upon exercise of stock options	389				389
Issuance of common stock upon exercise of stock options, Shares	45	45
Issuance of common stock pursuant to employee stock purchase plan	1,343				1,343
Issuance of common stock pursuant to employee stock purchase plan, Shares		97
Shares repurchased for tax withholdings on stock awards	-337				-337
Shares repurchased for tax withholdings on stock awards, shares		-15
Vesting of restricted common stock and units	0	0	0	0	0	0
Vesting of restricted common stock, Shares		41
Share-based and other incentive compensation	3,159				3,159
Foreign currency translation	207			207
Net loss	-6,306					-6,306
Balance at Jan. 02, 2015	$227,022	$48	($330)	($1,147)	$382,268	($153,817)
Balance, Shares at Jan. 02, 2015		47,716	23

Condensed_Consolidated_Stateme3

Condensed Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Jan. 03, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	($6,306)	($8,921)
Adjustments to reconcile net loss to net cash from operating activities (net of acquisition):
Warrant liability expense (gain)	10,608	-1,282
Depreciation and amortization	10,276	5,011
Acquired inventory step-up amortization	667	203
Amortization of deferred financing costs	439	119
Deferred income taxes	504	20
Loss on disposal of property and equipment	63	59
Share-based compensation	3,159	1,845
Change in operating assets and liabilities (net of acquisition):
Accounts receivable	6,553	9,146
Inventories	1,597	-2,531
Prepaid expenses and other assets	2,390	-2,366
Accounts payable	-3,424	419
Accrued liabilities	-6,941	4,967
Income taxes	-463	-4,730
Deferred revenue	-17,039	379
Net cash from operating activities	2,083	2,338
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	-2,956	-2,167
Acquisition of intellectual property	-1,056	-2,983
Acquisition of businesses, net	-223,070	-232,028
Net cash used in investing activities	-227,082	-237,178
CASH FLOWS FROM FINANCING ACTIVITIES:
Capital contributions		2,100
Payments on long-term debt	-875
Proceeds from revolving credit facility	100,000	220,000
Payments on capital leases	-1,081
Financing costs		-53
Proceeds from stock option exercises and employee stock purchases	1,732	1,057
Repurchase of common stock	-337
Excess tax benefits		580
Payment of assumed debt		-32,864
Net cash from financing activities	99,439	190,820
NET CHANGE IN CASH AND CASH EQUIVALENTS	-125,560	-44,020
CASH AND CASH EQUIVALENTS - Beginning of period	173,895	110,488
CASH AND CASH EQUIVALENTS - End of period	48,335	66,468
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid for interest	5,753	128
Cash paid for income taxes	$70	$1,656

Description_of_Business_Basis_

Description of Business, Basis of Presentation and Accounting	3 Months Ended
	Jan. 02, 2015
Accounting Policies [Abstract]
Description of Business, Basis of Presentation and Accounting	1	DESCRIPTION OF BUSINESS, BASIS OF PRESENTATION AND ACCOUNTING
	Description of Business—M/A-COM Technology Solutions Holdings, Inc. (MACOM or the Company) was incorporated in Delaware on March 25, 2009. MACOM is a supplier of high-performance analog RF, microwave, millimeterwave and photonic semiconductor products that enable next-generation internet and modern battlefield applications. Headquartered in Lowell, Massachusetts, MACOM has offices in North America, Europe, Asia and Australia.
	The Company has one reportable operating segment which designs, develops, manufactures and markets semiconductors and modules.
	Basis of Presentation—The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (GAAP) and applicable rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations.
	The Company’s fiscal year ends on the Friday closest to the last day of September. For fiscal years in which there are 53 weeks, the first quarter reporting period includes 14 weeks. Fiscal year 2015 is 52 weeks in length and the three months ended January 2, 2015 includes 13 weeks. Fiscal year 2014 was 53 weeks in length and the three months ended January 3, 2014 includes 14 weeks.
	On December 15, 2014, MACOM completed the acquisition of BinOptics Corporation (BinOptics), a supplier of high-performance photonic products (BinOptics Acquisition). The BinOptics Acquisition was accounted for as a purchase, and the operations of BinOptics have been included in MACOM’s condensed consolidated financial statements since December 15, 2014, the date of acquisition.
	MACOM acquired Nitronex, LLC (Nitronex) in connection with a common-control business combination on February 13, 2014 (Nitronex Acquisition). Nitronex, a supplier of high-performance gallium nitride (GaN) semiconductors for RF, microwave, and millimeterwave applications, was previously acquired by GaAs Labs, LLC (GaAs Labs) on June 25, 2012. GaAs Labs is a stockholder in MACOM and GaAs Labs, Nitronex and MACOM were under common control from June 25, 2012 through February 13, 2014 due to a common controlling stockholder. The accompanying condensed financial statements for three months ended January 3, 2014 combine MACOM’s historical condensed consolidated financial statements with the historical financial statements of Nitronex from September 28, 2013 through January 3, 2014, and have been presented in a manner similar to a pooling-of-interests to include the results of operations of each business since the date of common control. Since February 13, 2014, the results of Nitronex are included with those of MACOM on a consolidated basis. The accompanying condensed consolidated financial statements are referred to as “consolidated” for all periods presented.
	On December 18, 2013, MACOM completed the acquisition of Mindspeed Technologies, Inc. (Mindspeed), a supplier of high-performance, analog semiconductor solutions for communications infrastructure applications (Mindspeed Acquisition). The Mindspeed Acquisition was accounted for as a purchase, and the operations of Mindspeed have been included in MACOM’s consolidated financial statements since December 18, 2013, the date of acquisition.
	These consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended October 3, 2014, filed with the SEC on December 9, 2014.
	In the opinion of management, the accompanying unaudited consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full fiscal year 2015. The condensed consolidated financial statements include the Company and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated.
	Principles of Consolidation—The accompanying consolidated financial statements include the accounts of the Company and its majority-owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. Prior to the Nitronex Acquisition, MACOM and Nitronex did not have material intracompany transactions.
	Use of Estimates—The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the U.S. requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities during the reporting periods, the reported amounts of revenue and expenses during the reporting periods, and the disclosure of contingent assets and liabilities at the date of the financial statements. On an ongoing basis, the Company bases estimates and assumptions on historical experience, currently available information, and various other factors that management believes to be reasonable under the circumstances. Actual results may differ materially from these estimates and assumptions.
	Discontinued Operations—In the second quarter of fiscal year 2014, the Company sold assets of the non-core wireless business of Mindspeed and presented the divested businesses as assets held for sale as of the date of the Mindspeed Acquisition. The operating results of the business are reflected in discontinued operations.
	Foreign Currency Translation and Remeasurement—The Company’s consolidated financial statements are presented in U.S. dollars. While the majority of the Company’s foreign operations use the U.S. dollar as the functional currency, the financial statements of the Company’s foreign operations for which the functional currency is not the U.S. dollar are translated into U.S. dollars at the exchange rates in effect at the balance sheet dates (for assets and liabilities) and at average exchange rates (for revenue and expenses). The unrealized translation gains and losses on the net investment in these foreign operations are accumulated as a component of other comprehensive income loss.
	The financial statements of the Company’s foreign operations where the functional currency is the U.S. dollar, but where the underlying transactions are transacted in a different currency, are re-measured at the exchange rate in effect at the balance sheet date with respect to monetary assets and liabilities. Nonmonetary assets and liabilities, such as inventories and property and equipment, and related statements of operations accounts, such as cost of revenue and depreciation, are remeasured at historical exchange rates. Revenue and expenses, other than cost of revenue, amortization and depreciation, are translated at the average exchange rate for the period in which the transaction occurred. The net gains (losses) on foreign currency remeasurement are reflected in selling, general and administrative expense in the accompanying consolidated statements of operations. The Company’s recognized net gains and losses on foreign exchange are included in selling, general and administrative expense and for all periods presented were immaterial.
	Revenue Recognition—The Company recognizes revenue when: (i) persuasive evidence of an arrangement exists; (ii) delivery or services have been rendered; (iii) the price is fixed or determinable, and (iv) collectability is reasonably assured. The Company recognizes revenue with the transfer of title and risk of loss, and provide for reserves for returns and other allowances.
	The Company generally does not provide customers other than distributors the right to return product, with the exception of warranty related matters. Accordingly, the Company does not maintain a reserve for such customers. Shipping and handling fees billed to customers are recorded as revenue while the related costs are classified as a component of revenue. The Company provides warranties for its products and accrues the cost of warranty claims in the period the related revenue is recorded.
	Certain agreements with distribution customers provide for rights of return and price protection until such time as the Company’s products are sold by the distributors to their customers and, until the quarter ended January 2, 2015, the Company recognizes revenue from sales under such agreements when the distributor resold the product to its end customer (the sell-through basis of recognizing revenue). In the first quarter ended January 2, 2015, the Company completed an evaluation of our revenue recognition methodology relating to distributors and concluded that it was more appropriate to recognize revenues on sales to distributors at the time of shipment to a distributor (the sell-in basis of recognizing revenue).
	Prior to the first quarter, the Company had concluded that it had insufficient information as well as limited experience in estimating the effect of the right of distributors to return product and price protection and, accordingly, used the sell through method of revenue recognition. The Company had recently concluded a study of three years of distributor related transactions in addition to its ongoing efforts to standardize its revenue recognition policies and believes the Company now has sufficient data to reach the conclusion that sales and revenues relating to distributor transactions are capable of reasonable estimation. Accordingly, the Company implemented the sell-in method of accounting for sales to distributors. The Company recorded adjustments during the first quarter ended January 2, 2015 related to this change to recognize previously deferred revenues and to establish a reserve of $5.5 million against distributor sales. The net effect was a one-time increase of $15.1 million for both previously deferred revenue and current period revenue. Additionally, the Company recognized the related inventory costs of $4.7 million. The foregoing resulted in a reduction of net loss by $8.5 million and a reduction of earnings per share loss of $0.18 per share.
	In determining the new reserve amount, the Company noted that distributor payments are due under agreed terms and are not contingent upon resale or any other matter other than the passage of time. The Company has agreements with some distributors and customers for various programs, including pricing protection, obsolete inventory, new products and stock rotation. Sales to these distributors and customers, as well as the existence of sales incentive programs, are in accordance with terms set forth in written agreements with these distributors and customers. In general, credits allowed under these programs are capped based upon individual distributor agreements. The Company records charges associated with these programs as a reduction of revenue at the time of sale based upon historical activity. The Company’s policy is to use a twelve month rolling historical experience rate as well as an estimated general reserve percentage in order to estimate the necessary allowance to be recorded.
	Recent Accounting Standards—Under the Jumpstart Our Business Startups Act (JOBS Act), the Company meets the definition of an emerging growth company. The Company has elected to avail itself of the extended transition period for complying with new or revised accounting standards pursuant to Section 107(b) of the JOBS Act.
	In April 2014, the FASB issued Accounting Standards Update 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity (ASU 2014-08), which raises the threshold for disposals to qualify as discontinued operations. A discontinued operation is defined as: (1) a component of an entity or group of components that has been disposed of or classified as held for sale and represents a strategic shift that has or will have a major effect on an entity’s operations and financial results; or (2) an acquired business that is classified as held for sale on the acquisition date. ASU 2014-08 also requires additional disclosures regarding discontinued operations, as well as material disposals that do not meet the definition of discontinued operations. The application of this guidance is prospective from the date of adoption and applies only to disposals (or new classifications to held for sale) that have not been reported as discontinued operations in previously issued financial statements.
	In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers. ASU 2014-09 requires revenue recognition to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 sets forth a new revenue recognition model that requires identifying the contract, identifying the performance obligations, determining the transaction price, allocating the transaction price to performance obligations and recognizing the revenue upon satisfaction of performance obligations. The amendments in the ASU can be applied either retrospectively to each prior reporting period presented or retrospectively with the cumulative effect of initially applying the update recognized at the date of the initial application along with additional disclosures. The Company is currently evaluating the impact of ASU 2014-09, which is effective for the Company in its fiscal year beginning on September 30, 2017.

Acquisitions

Acquisitions	3 Months Ended
	Jan. 02, 2015
Business Combinations [Abstract]
Acquisitions	2. ACQUISITIONS
	Acquisition of BinOptics Corporation—On November 17, 2014, MACOM entered into an Agreement and Plan of Merger with BinOptics, a supplier of high-performance photonic products. On December 15, 2014, MACOM completed the acquisition of BinOptics. In accordance with the Agreement and Plan of Merger, all of the outstanding equity interests (including outstanding warrants) of BinOptics were exchanged for aggregate consideration of approximately $224.1 million in cash, subject to customary purchase price adjustments. The Company funded the BinOptics Acquisition with a combination of cash on hand and the incurrence of $100.0 million of additional borrowings under our existing Revolving Facility. The Company incurred $4.6 million in transaction costs related to the BinOptics Acquisition during the three months ended January 2, 2015.
	The Company believes BinOptics aligns with its core growth strategy in its Networks market, and that it has a high-performance photonic products business model consistent with the Company’s target model for higher margin products with long product lifecycles. Further, the Company believes that BinOptics complements its existing business with an established footprint and customer relationships in the Asia-Pacific region and expands its addressable market for Indium Phosphide (InP) high-performance laser semiconductors and technology for use in optical networks.
	The BinOptics Acquisition was accounted for as a purchase and the operations of BinOptics have been included in MACOM’s consolidated financial statements since the date of acquisition.
	MACOM is recognizing BinOptics’ assets acquired and liabilities assumed based upon the fair value of such assets and liabilities measured as of the date of acquisition. The aggregate purchase price for BinOptics is being allocated to the tangible and identifiable intangible assets acquired and liabilities assumed based on their estimated fair values at the date of acquisition. The excess of the purchase price over the fair value of the acquired net assets represents cost and revenue synergies specific to the Company, as well as non-capitalizable intangible assets, such as the employee workforce acquired, and has been allocated to goodwill, none of which is tax deductible. A preliminary allocation follows (in thousands):
		Amount
	Current assets	$	41,836
	Intangible assets		135,254
	Other assets		14,090
	Total assets acquired		191,180
	Liabilities assumed:
	Debt		1,491
	Deferred income taxes		37,745
	Other liabilities		12,810
	Total liabilities assumed		52,046
	Net assets acquired		139,134
	Consideration:
	Cash paid upon closing, net of cash acquired		224,114
	Goodwill	$	84,980
	The components of the acquired intangible assets on a preliminary basis were as follows (in thousands):
		Amount			Useful Lives
					(Years)
	Developed technology	$	17,954		7
	Customer relationships		113,500		10
	Backlog		3,800		1
		$	135,254
	The overall weighted-average life of the identified intangible assets acquired in the acquisition is estimated to be 9.3 years and the assets are being amortized over their estimated useful lives based upon the pattern over which the Company expects to receive the economic benefit from these assets.
	The purchase accounting is preliminary and subject to completion including the areas of taxation where a study of the potential utilization of acquired net operating losses is not yet complete, and certain fair value measurements, particularly the finalization of the valuation assessment of the acquired tangible and intangible assets. The adjustments arising from the completion of the outstanding matters may materially affect the preliminary purchase accounting and would be retroactively reflected in the financial statements as of January 2, 2015 and for the interim period then ended.
	The following is a summary of BinOptics revenue and earnings included in MACOM’s accompanying condensed consolidated statements of operations for the three months ended January 2, 2015 (in thousands):
	Revenue	$	2,128
	Loss from continuing operations before income taxes		(1,379	)
	Unaudited Supplemental Pro Forma Data—The pro forma statements of operations data for the three months ended January 2, 2015 and January 3, 2014 below give effect to the BinOptics Acquisition, described above, as if it had occurred at September 27, 2013. These amounts have been calculated after applying MACOM’s accounting policies and adjusting the results of BinOptics to reflect the additional depreciation and amortization that would have been charged assuming the fair value adjustments to property, plant and equipment and intangible assets and additional interest expense on acquisition-related borrowings had been applied and incurred since September 27, 2013. The supplemental pro forma earnings for the three months ended January 2, 2015 and January 3, 2014 were adjusted to exclude discontinued operations. This pro forma data is presented for informational purposes only and does not purport to be indicative of the Company’s future results of operations.
		Three months ended
		January 2,			January 3,
		2015			2014
	Revenue	$	126,731		$	90,764
	Net loss		(7,611	)		(11,727	)
	Acquisition under Common Control—On February 13, 2014, MACOM acquired Nitronex, LLC (Nitronex) an entity under common control, through a cash payment of $26.1 million for all of the outstanding ownership interests of Nitronex (Nitronex Acquisition). MACOM funded the Nitronex Acquisition through the use of available cash and borrowings under its revolving credit facility. The purchase price includes $3.9 million held on account by a third-party escrow agent pending any claims by MACOM in connection with general representation matters made by GaAs Labs, LLC (GaAs Labs) in the transaction. The indemnification period expires in August 2015, at which point if no claims are made, all amounts will be paid to GaAs Labs.
	Acquisition of Mindspeed Technologies, Inc.—On December 18, 2013, MACOM completed the acquisition of Mindspeed, a supplier of semiconductor solutions for communications infrastructure applications. The Company acquired Mindspeed to further its expansion into high-performance analog products.
	MACOM completed the Mindspeed Acquisition through a cash tender offer (Offer) by Micro Merger Sub, Inc. (Merger Sub), a wholly-owned subsidiary of MACOM, for all of the outstanding shares of common stock, par value $0.01 per share, of Mindspeed (Shares) at a purchase price of $5.05 per share, net to the seller in cash, without interest, less any applicable withholding taxes (Offer Price). Immediately following the Offer, Merger Sub merged with and into Mindspeed, with Mindspeed surviving as a wholly-owned subsidiary of MACOM. At the effective time of the merger, each Share not acquired in the Offer (other than shares held by MACOM, Merger Sub and Mindspeed, and shares of restricted stock assumed by MACOM in the merger) was converted into the right to receive the Offer Price. MACOM funded the Mindspeed Acquisition through the use of available cash and borrowings under its revolving credit facility. The aggregate purchase price for the Shares, net of cash acquired, was $232.0 million and MACOM assumed $81.3 million of liabilities and incurred costs of $4.5 million expensed during fiscal year 2014.
	The Mindspeed Acquisition was accounted for as a purchase and the operations of Mindspeed have been included in MACOM’s consolidated financial statements since the date of acquisition.
	MACOM recognized assets acquired and liabilities assumed based upon the fair value of such assets and liabilities measured as of the date of acquisition. The aggregate purchase price for Mindspeed was allocated to the tangible and identifiable intangible assets acquired and liabilities assumed based on their estimated fair values at the date of acquisition. The excess of the purchase price over the fair value of the acquired net assets represents cost and revenue synergies specific to the Company, as well as non-capitalizable intangible assets, such as the employee workforce acquired, and has been allocated to goodwill, none of which is tax deductible.
	The Company finalized the purchase price allocation of the Mindspeed acquisition during the current quarter. No allocation adjustments were recorded during the three months ended January 2, 2015. The final allocation of purchase price is as follows:
		Amount
	Current assets	$	50,612
	Intangible assets		138,663
	Deferred income taxes		92,881
	Other assets		31,788
	Total assets acquired		313,944
	Liabilities assumed:
	Current liabilities		35,270
	Debt		40,177
	Other liabilities		5,865
	Total liabilities assumed		81,312
	Net assets acquired		232,632
	Consideration:
	Cash paid upon closing, net of cash acquired		232,028
	Fair value of vested awards assumed in acquisition		785
	Total consideration		232,813
	Goodwill	$	181
	In connection with the Mindspeed Acquisition, MACOM assumed all of the outstanding options and all unvested restricted stock awards under Mindspeed’s equity plans and converted such options and stock awards into equivalent MACOM awards under the same general terms and conditions as were in existence with adjustments made to shares and exercise prices, if any, pursuant to a formula stipulated in the terms of the acquisition. The fair value of the assumed options and stock awards was $4.1 million, of which $0.8 million relates to vested stock options and has been included in the purchase consideration and the remainder relates to unvested stock options and stock awards, which will be expensed as the remaining services are provided.
	The components of the acquired intangible assets were as follows (in thousands):
		Amount			Useful Lives
					(Years)
Developed technology	$	109,263		7
Customer relationships		11,430		10
In-process research and development		17,970		N/A
	$	138,663
The overall weighted-average life of the identified intangible assets acquired in the acquisition is estimated to be seven years.
The following is a summary of Mindspeed’s revenue and earnings, included in MACOM’s accompanying condensed consolidated statements of operations for the three months ended January 3, 2014 (in thousands):
Revenue	$	1,253
Loss from continuing operations before income taxes and restructuring charges		(3,598	)
Subsequent to closing the Mindspeed Acquisition, MACOM divested the wireless business of Mindspeed. The operations of the wireless business are included in discontinued operations through the date of sale. The Company completed the sale of the wireless business in February 2014. The accompanying consolidated statement of operations for the three months ended January 3, 2014 includes the following operating results related to the business to be divested (in thousands):
Revenue	$	457
Loss before income taxes		(3,374	)
Benefit for income taxes		1,269
Loss from discontinued operations, net		(2,105	)
Unaudited Supplemental Pro Forma Data—The pro forma statements of operations data for the three months ended January 3, 2014 below give effect to the Mindspeed Acquisition, described above, as if it had occurred at September 27, 2013. These amounts have been calculated after applying MACOM’s accounting policies and adjusting the results of Mindspeed to reflect the additional depreciation and amortization that would have been charged assuming the fair value adjustments to property, plant and equipment and intangible assets and additional interest expense on acquisition-related borrowings had been applied and incurred since September 27, 2013. The supplemental pro forma earnings for the three months ended January 3, 2014 were adjusted to exclude discontinued operations. This pro forma data is presented for informational purposes only and does not purport to be indicative of the Company’s future results of operations.
	January 3, 2014
Revenue	$	102,924
Net loss		(8,078	)
Other Acquisitions—In the fiscal fourth quarter of 2014 we acquired two businesses, I.K.E., Incorporated (IKE Micro) and Photonic Controls, LLC (Photonic Controls), for total cash consideration of $2.8 million. IKE Micro is a specialized build-to-print house based in Nashua, New Hampshire. The primary purpose of the IKE Micro acquisition is to drive COGS reductions and further improve gross margin in our Optoelectronics business. Photonic Controls is a small design company based in Horseheads, New York which specializes in photonic semiconductor development and system design. Its primary focus is to design silicon photonic chips for 100G/400G optical networks.
The assets acquired and liabilities assumed were recorded at their fair values and operating results were included in the financial statements from the date of acquisition. The preliminary purchase price allocation resulted in goodwill of $3.9 million and intangible assets, including manufacturing know-how and customer relationships, of $1.6 million recorded on the date of acquisition, which will be amortized over 7-10 years. Additionally, the Company recorded a contingent consideration liability of $0.8 million related to the acquisition of Photonic Controls which is included in other long-term liabilities in the accompanying consolidated balance sheet as of October 3, 2014. The maximum possible payment of contingent purchase price is $1.3 million. Approximately $1.7 million of the goodwill resulting from these acquisitions is deductible for tax purposes. The purchase price allocation will be finalized in fiscal 2015 upon receipt of final information related to valuation of intangibles and no allocation adjustments were recorded in the three months ended January 2, 2015. The acquisitions were not material to the Company’s consolidated financial statements.
Investments—The Company determines the appropriate classification of its investments at the time of acquisition and re-evaluates such determination at each balance sheet date. The Company records at cost non-marketable equity investments where it does not have the ability to exercise significant influence or control and periodically reviews such investments for impairment.
During fiscal year 2014, the Company made a minority investment of $0.3 million in the convertible debt of a privately-held U.S. based company. The Company classified this investment as trading securities. (See Note 3.)
During fiscal year 2014, the Company made a minority investment of $5.0 million in the equity of a privately-held U.S. based company. This minority equity investment is accounted for under the cost method due to ownership less than 20% and lack of significant influence and is included on the consolidated balance sheets in other long-term assets. The Company evaluated the investment for other-than-temporary impairment as of January 2, 2015 and determined that no impairment existed. Additionally, the Company determined that the equity investment contained embedded derivatives. The accounting treatment of derivative financial instruments requires that the Company record the fair value of the derivatives as of the inception date of the equity investment and to adjust the fair value as of each subsequent balance sheet date. As of January 2, 2015, the Company determined the embedded derivatives had no value, consistent with prior periods and the inception date.

Financial_Instruments

Financial Instruments	3 Months Ended
	Jan. 02, 2015
Fair Value Disclosures [Abstract]
Financial Instruments	3. FINANCIAL INSTRUMENTS
	Assets and liabilities measured at fair value on a recurring basis consist of the following (in thousands):
		January 2, 2015
		Fair		Active			Observable		Unobservable
		Value		Markets			Inputs		Inputs
				for			(Level 2)		(Level 3)
				Identical
				Assets
				(Level 1)
	Assets
	Trading securities	$	250	$	—		$	—	$	250
	Total assets measured at fair value	$	250	$	—		$	—	$	250
	Liabilities
	Contingent consideration	$	820	$	—		$	—	$	820
	Common stock warrant liability		26,409		—			—		26,409
	Total liabilities measured at fair value	$	27,229	$	—		$	—	$	27,229
		October 3, 2014
		Fair		Active			Observable		Unobservable
		Value		Markets			Inputs		Inputs
				for			(Level 2)		(Level 3)
				Identical
				Assets
				(Level 1)
	Assets
	Trading securities	$	250	$	—		$	—	$	250
	Total assets measured at fair value	$	250	$	—		$	—	$	250
	Liabilities
	Contingent consideration	$	820	$	—		$	—	$	820
	Common stock warrant liability		15,801		—			—		15,801
	Total liabilities measured at fair value	$	16,621	$	—		$	—	$	16,621
	The changes in assets and liabilities with inputs classified within Level 3 of the fair value hierarchy consist of the following (in thousands):
		Three Months Ended January 2, 2015
		October 3,		Net Realized/			Purchases		Sales and		Transfers in		January 2,
		2014		Unrealized			and		Settlements		and/or (out)		2015
				Losses (Gains)			Issuances				of Level 3
				Included in
				Earnings
	Trading securities	$	250	$	—		$	—	$	—	$	—	$	250
	Contingent consideration	$	820	$	—		$	—	$	—	$	—	$	820
	Common stock warrant liability	$	15,801	$	10,608		$	—	$	—	$	—	$	26,409
		Three Months Ended January 3, 2014
		September 27,		Net Realized/			Purchases		Sales and		Transfers in		January 3,
		2013		Unrealized			and		Settlements		and/or (out)		2014
				Losses (Gains)			Issuances				of Level 3
				Included in
				Earnings
	Common stock warrant liability	$	11,873	$	(1,282	)	$	—	$	—	$	—	$	10,591
	As of January 2, 2015, the fair value of the securities have been estimated to approximate cost. These estimates include significant judgments about potential future liquidity events and actual results could differ and could have an impact upon the values of the recorded financial instruments. Any changes in the estimated fair values of the financial instruments in the future will be reflected in the Company’s earnings and such changes could be material.
	The fair values of the contingent consideration liabilities were estimated based upon a risk-adjusted present value of the probability-weighted expected payments by the Company. Specifically, the Company considered base, upside and downside scenarios for the operating metrics upon which the contingent payments are to be based. Probabilities were assigned to each scenario and the probability-weighted payments were discounted to present value using risk-adjusted discount rates. The maximum possible payment of contingent consideration is $1.3 million.
	As of January 2, 2015, the fair value of the stock warrants has been estimated using a Black-Scholes option pricing model giving consideration to the quoted market price of the common stock on that date, an expected life of 6.0 years, expected volatility of 39.4% and risk free rate of 1.9%. Any significant change in these assumptions could have an impact on the value of the stock warrants.

Inventories

Inventories	3 Months Ended
	Jan. 02, 2015
Inventory Disclosure [Abstract]
Inventories	4. INVENTORIES
	Inventories consist of the following (in thousands):
		January 2,		October 3,
		2015		2014
	Raw materials	$	42,068	$	34,919
	Work-in-process		4,249		5,500
	Finished goods		42,891		33,153
	Total	$	89,208	$	73,572

Property_and_Equipment

Property and Equipment	3 Months Ended
	Jan. 02, 2015
Property, Plant and Equipment [Abstract]
Property and Equipment	5. PROPERTY AND EQUIPMENT
	Property and equipment consists of the following (in thousands):
		January 2,			October 3,
		2015			2014
	Machinery and equipment	$	75,027		$	68,438
	Leasehold improvements		8,594			7,998
	Furniture and fixtures		1,139			1,017
	Construction in process		18,511			12,918
	Computer equipment and software		7,758			7,758
	Total property and equipment		111,029			98,129
	Less accumulated depreciation and amortization		(51,636	)		(47,772	)
	Property and equipment — net	$	59,393		$	50,357
	Depreciation and amortization expense related to property and equipment for the three months ended January 2, 2015 was $3.9 million. Depreciation and amortization expense related to property and equipment for the three months ended January 3, 2014 was $3.2 million.

Debt

Debt	3 Months Ended
	Jan. 02, 2015
Debt Disclosure [Abstract]
Debt	6. DEBT
	On September 26, 2013, and as amended November 5, 2013, the Company entered into an amended and restated loan agreement with a syndicate of lenders, which provided for a revolving credit facility of up to $300.0 million that was due to mature in September 2018 (Prior Facility). Borrowings under the revolving credit facility either bore a variable interest rate based on either the lender’s prime rate or a LIBOR rate, plus an applicable margin. The revolving credit facility was secured by a first priority lien on substantially all of the Company’s assets and required compliance with certain financial and non-financial covenants. In connection with the Mindspeed and Nitronex acquisitions, MACOM borrowed an aggregate of $245.0 million of indebtedness on its Prior Facility.
	On May 8, 2014, the Company refinanced its outstanding indebtedness under the Prior Facility and discharged its obligations thereunder by entering into a credit agreement (Credit Agreement) with Goldman Sachs Bank USA and a syndicate of lenders. Concurrent with the execution of the Credit Agreement, the Company terminated the Prior Facility and repaid the outstanding $245.0 million principal and interest due through draws on the Credit Agreement. Upon terminating the Prior Facility, previously deferred financing costs pertaining to that facility of $2.1 million were expensed as additional interest.
	The Credit Agreement provides for term loans in an aggregate principal amount of $350.0 million, which mature in May 2021 (Term Loans) and a revolving credit facility of up to $100.0 million, which matures in May 2019 (Revolving Facility). The Term Loans were issued with an original issue discount of 0.75%, which is being amortized over the term of the Term Loans using the straight-line method, which approximates the effective interest rate method. Borrowings under the Term Loans bear interest (payable quarterly) at: (i) for LIBOR loans, a rate per annum equal to the LIBOR rate (subject to a floor of 0.75%), plus an applicable margin of 3.75%, and (ii) for base rate loans, a rate per annum equal to the prime rate (subject to a floor of 1.75%), plus an applicable margin of 2.75%. Borrowings under the Revolving Facility bear interest (payable quarterly) at: (i) for LIBOR loans, a rate per annum equal to the LIBOR rate, plus an applicable margin in the range of 2.00% to 2.50% (based on the Company’s total net leverage ratio being within certain defined ranges), and (ii) for base rate loans, a rate per annum equal to the prime rate, plus an applicable margin in the range of 1.00% to 1.50% (based on the Company’s total net leverage ratio being within certain defined ranges). The Company also pays a quarterly unused line fee for the Revolving Facility in the range of 0.25% to 0.375% (based on the Company’s total net leverage ratio being within certain defined ranges) as well as overall agency fees. MACOM borrowed $100.0 million of indebtedness on its Revolving Facility in connection with the BinOptics Acquisition, which remains outstanding at January 2, 2015. The Company has no remaining borrowing capacity under the Revolving Facility as of January 2, 2015. The Term Loans are payable in quarterly principal installments equal to 0.25% of the aggregate dollar amount of all Term Loans outstanding at the signing of the Credit Agreement, beginning on the last business day of September 2014, with the remainder due on the maturity date.
	At the signing of the Credit Agreement, the entire $350.0 million principal amount of the Term Loans was funded. The Term Loans and Revolving Facility are secured by a first priority lien on substantially all of the Company’s assets and provide that the Company must comply with certain financial and non-financial covenants. The Company incurred $8.7 million in fees for the issuance of the Credit Agreement which were recorded as deferred financing costs and are being amortized over the life of Credit Agreement as interest expense. As of January 2, 2015, approximately $7.8 million of deferred financing costs remain unamortized.
	As of January 2, 2015, the following remained outstanding on the Term Loans:
	Principal balance	$	348,250
	Unamortized discount		(2,375	)
			345,875
	Current portion		3,500
	Long-term, less current portion	$	342,375
	As of January 2, 2015, the minimum principal payments under the Term Loans in future fiscal years was as follows (in thousands):
	2015 (rest of fiscal year)	$	2,625
	2016		3,500
	2017		3,500
	2018		3,500
	2019		3,500
	Thereafter		331,625
	Total	$	348,250
	The fair value of the Term Loans was estimated to be approximately $343.0 million as of January 2, 2015, and was determined using Level 3 inputs, including a quoted rate from a bank.

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	3 Months Ended
	Jan. 02, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	7. GOODWILL AND INTANGIBLE ASSETS
	Amortization expense related to intangible assets is as follows (in thousands):
		Three Months Ended
		January 2,			January 3,
		2015			2014
	Cost of revenue	$	5,359		$	1,968
	Selling, general and administrative		1,053			385
	Total	$	6,412		$	2,353
	Intangible assets consist of the following (in thousands):
		January 2,			October 3,
		2015			2014
	Acquired technology	$	150,757		$	131,953
	Customer relationships		138,170			24,670
	In-process research and development		17,970			17,970
	Trade name		3,400			3,400
	Backlog		3,800			—
	Total		314,097			177,993
	Less accumulated amortization		(41,772	)		(35,360	)
	Intangible assets — net	$	272,325		$	142,633
	A summary of the activity in intangible assets and goodwill follows (in thousands):
		Total			Acquired			Customer		In-Process		Trade		Backlog		Goodwill
					Technology			Relationships		Research and		Name
										Development
	Balance at October 3, 2014	$	188,777		$	131,953		$	24,670	$	17,970	$	3,400	$	—	$	10,784
	BinOptics acquisition		220,234			17,954			113,500		—		—		3,800		84,980
	Other intangibles purchased		850			850			—		—		—		—		—
	Balance at January 2, 2015	$	409,861		$	150,757		$	138,170	$	17,970	$	3,400	$	3,800	$	95,764
	As of January 2, 2015, estimated amortization of the intangible assets in future fiscal years, subject to the completion of the purchase price allocation for the BinOptics Acquisition, was as follows (in thousands):
	2015 (rest of fiscal year)	$	31,256
	2016		34,071
	2017		34,143
	2018		32,760
	2019		31,019
	Thereafter		89,977
	Total	$	253,226
	The trade name and in-process research and development (IPR&D) are indefinite-lived intangible assets. During development, IPR&D is not subject to amortization and is tested for impairment annually or more frequently if events or changes in circumstances indicate that the asset might be impaired. The impairment test consists of a comparison of the fair value to its carrying amount. If the carrying value exceeds its fair value, an impairment loss is recognized in an amount equal to that excess. Once an IPR&D project is complete, it becomes a definite long-lived intangible asset and is evaluated for impairment in accordance with the Company’s policy for long-lived assets.
	Accumulated amortization, for the acquired technology and customer relationships was $33.1 million and $8.6 million, respectively, as of January 2, 2015, and $27.8 million and $7.6 million, respectively, as of January 3, 2014.
	In July 2013, the Company entered into a long term technology licensing and transfer agreement that calls for potential payments by the Company of up to $9.0 million through July 2016 based upon the achievement of specified milestones. Costs incurred in connection with the licensing and the transfer of the technology aggregated $7.0 million and $4.1 million as of January 2, 2015 and January 3, 2014, respectively, and were capitalized as incurred as acquired technology. Costs will be amortized to costs of revenue upon completion of the transfer, which is currently expected to be completed through fiscal year 2016.

Stockholders_Equity

Stockholders' Equity	3 Months Ended
	Jan. 02, 2015
Equity [Abstract]
Stockholders' Equity	8. STOCKHOLDER’S EQUITY
	The Company has authorized 10 million shares of $0.001 par value preferred stock and 300 million shares of $0.001 par value common stock as of January 2, 2015.
	Outstanding shares of the Company’s common stock as of January 2, 2015 and October 3, 2014, presented in the accompanying condensed consolidated statements of stockholders’ equity exclude 52,000 and 59,000 unvested shares of restricted common stock, respectively, issued as compensation to employees that remained subject to forfeiture.

Income_Loss_Per_Share

Income (Loss) Per Share	3 Months Ended
	Jan. 02, 2015
Earnings Per Share [Abstract]
Income (Loss) Per Share	9. INCOME (LOSS) PER SHARE
	Basic net income (loss) per share is computed using the weighted-average number of common shares outstanding during the period. Diluted net income per share is computed using the weighted-average number of common shares and, if dilutive, potential common shares outstanding during the period. The Company’s potential dilutive common shares consist of common shares issuable upon the exercise of warrants, stock options and vesting of restricted stock units. The dilutive effect of outstanding stock options is reflected in diluted earnings per share by application of the treasury stock method.
	The following table sets forth the computation for basic and diluted net income per share of common stock (in thousands, except per share data):
		Three Months Ended
		January 2,			January 3,
		2015			2014
	Numerator:
	Net loss	$	(6,306	)	$	(8,921	)
	Denominator:
	Weighted average common shares outstanding-basic		47,606			46,517
	Dilutive effect of options, restricted stock and warrants		—			—
	Weighted average common shares outstanding-diluted		47,606			46,517
	Common stock loss per share:
	Basic	$	(0.13	)	$	(0.19	)
	Diluted	$	(0.13	)	$	(0.19	)
	The table above excludes the effects of 1,599 and 1,267 potential shares of common stock issuable upon exercise of stock options, restricted stock, and warrants for the three months ended January 2, 2015 and January 3, 2014, respectively, as the inclusion of which would be antidilutive.

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Jan. 02, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	10. COMMITMENTS AND CONTINGENCIES
	Purchase Commitments—As of January 2, 2015 and October 3, 2014, the Company had outstanding non-cancelable purchase commitments aggregating $3.5 million and $5.2 million respectively, pursuant to inventory supply arrangements.
	Litigation—The Company is periodically subject to legal proceedings, claims and contingencies arising in the ordinary course of business.
	Patent Suit Against Laird. The Company brought a patent infringement suit against Laird Technologies, Inc. (Laird) in the Federal District Court for the District of Delaware on February 11, 2014, seeking monetary damages and a permanent injunction. The suit alleges that Laird infringes on the Company’s United States Patent No. 6,272,349 (‘349 Patent), titled “Integrated Global Positioning System Receiver,” by making, using, selling, offering to sell or selling products incorporating an integrated global positioning receiver that include structure(s) recited in the ‘349 Patent, including global positioning system modules for automotive industry customers. Laird filed an answer and declaratory judgment claims of invalidity and non-infringement on June 30, 2014. The Company filed a reply to the counterclaims on July 24, 2014.
	The Company filed a motion for preliminary injunction, seeking to enjoin Laird’s infringement pending full trial on the merits. The court granted the motion for a preliminary injunction on June 13, 2014 and required the Company to post a bond of $4.0 million to secure the injunction. In granting the injunction, the court found that the Company is likely to succeed on the merits of the case at a full trial and that the equities weighed in favor of preliminarily enjoining Laird from making sales of its product until trial. Trial is scheduled to begin on May 16, 2016.
	With respect to the above and other legal proceedings, the Company has not been able to reasonably estimate the amount or range of any possible loss, and accordingly has not accrued or disclosed any related amounts of possible loss in the accompanying consolidated financial statements.

Restructurings

Restructurings	3 Months Ended
	Jan. 02, 2015
Restructuring and Related Activities [Abstract]
Restructurings	11. RESTRUCTURINGS
	The Company has periodically implemented restructuring actions in connection with broader plans to reduce staffing, and, generally, reduce operating costs. The restructuring expenses are comprised of direct and incremental costs related to headcount reductions including change-in-control obligations, severance, and outplacement fees for the terminated employees. The following is a summary of the costs incurred and remaining balances included in accrued expenses related to restructuring actions taken (in thousands):
	Balance-October 3, 2014	$	801
	Current period charges - continuing operations		—
	Payments		(734	)
	Balance-January 2, 2015	$	67
	The restructuring actions taken in fiscal year 2014 were paid through the first quarter of fiscal year 2015, and the remaining amount is expected to be paid during the second quarter of fiscal year 2015. No significant charges are expected. The Company’s restructuring charges are primarily employee related with non-employee related charges determined to be immaterial.

ShareBased_Compensation

Share-Based Compensation	3 Months Ended
	Jan. 02, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation	12. SHARE-BASED COMPENSATION
	The following table presents the effects of share-based compensation expense related to share-based awards to employees and non-employees in the Company’s consolidated statements of operations during the periods presented (in thousands):
		Three Months Ended
		January 2,			January 3,
		2015			2014
	Cost of revenue	$	346		$	283
	Research and development		962			484
	Selling, general and administrative		1,851			1,078
	Total stock-based compensation expense	$	3,159		$	1,845
	The Company has the following equity incentive plans: the Amended and Restated 2009 Stock Incentive Plan (2009 Plan), the 2012 Omnibus Incentive Plan (2012 Plan), the 2012 Employee Stock Purchase Plan (ESPP), the Mindspeed Technologies, Inc. 2013 Equity Incentive Plan (Mindspeed 2013 Plan), the Mindspeed Technologies, Inc. 2003 Long-Term Incentives Plan (Mindspeed 2003 Plan) and the Mindspeed Technologies, Inc. Directors Stock Plan (Mindspeed Directors Plan).
	Upon the closing of the IPO, all shares that were reserved under the 2009 Plan but not awarded were assumed by the 2012 Plan. No additional awards will be made under the 2009 Plan. Under the 2012 Plan, the Company has the ability to issue incentive stock options (ISOs), non-statutory stock options (NSOs), stock appreciation rights, restricted stock, restricted stock units (RSUs), performance units, performance shares and other equity-based awards to employees, directors and outside consultants. The ISOs and NSOs must be granted at a price per share not less than the fair value of our common stock on the date of grant. Options granted to date generally vest over a four-year period with 25% vesting at the end of one year and the remaining vest monthly thereafter. Certain of the share-based awards granted and outstanding as of January 2, 2015, are subject to accelerated vesting upon a sale of the Company or similar changes in control. Options granted generally are exercisable up to 10 years. In fiscal year 2012, the Company began granting RSUs, which generally vest annually over one to five years. As of January 2, 2015, the Company had 9.8 million shares available for future grants under the 2012 Plan.
	The Mindspeed 2013 Plan, the Mindspeed 2003 Plan, the Mindspeed Directors Plan and certain inducement equity grants (collectively, the Mindspeed Plans) were assumed by the Company in connection with the Mindspeed Acquisition. No additional equity awards will be made under the Mindspeed Plans.
	A summary of stock option activity for the three months ended January 2, 2015, is as follows (in thousands, except per share amounts):
		Number of			Weighted-		Weighted-		Aggregate
		Shares			Average		Average		Intrinsic
					Exercise Price		Remaining		Value
					Per Share		Contractual
							Term
							(in years)
	Outstanding-October 3, 2014		948		$	11.73		6.6	$	10,015
	Granted		—			—
	Exercised		(45	)		8.64
	Forfeited, canceled or expired		—			—
	Outstanding-January 2, 2015		903		$	11.87		6.5	$	17,949
	Options vested and expected to vest as of January 2, 2015		820		$	11.3		6.3	$	16,781
	Options vested and exercisable as of January 2, 2015		523		$	7.77		4.6	$	12,622
	Aggregate intrinsic value represents the difference between the Company’s closing stock price on January 2, 2015, and the exercise price of outstanding, in-the-money options. The total intrinsic value of options exercised was $806,000 for the three months ended January 2, 2015. As of January 2, 2015, total unrecognized compensation cost, adjusted for estimated forfeitures, related to unvested stock options was $1.9 million, which is expected to be recognized over the next 2.4 years.
	In April 2014, the Company granted stock options as to 405,000 shares of common stock with a grant date fair value of $3.5 million that are subject to vesting only upon the market price of the Company’s underlying public stock closing above a certain price target within ten years of the grant date. Due to the market condition upon which vesting is based, the fair value of the awards was estimated using a Monte Carlo simulation model. Compensation cost is recognized regardless of the number of awards that are earned based on the market condition. Compensation cost is recognized on a straight-line basis over the estimated service period of three years. In the event that the Company’s common stock achieves the target price of $32.55 per share prior to the end of the estimated service period, any remaining unamortized compensation cost will be recognized. These options are included in the table and other information above. On January 23, 2015, the Company’s common stock closed at a price of $34.79 per share, exceeding the target price of $32.55 per share, which will result in the recognition of approximately $2.5 million of compensation expense in the Company’s second fiscal quarter of 2015.
	A summary of restricted stock and restricted stock units’ activity for the three months ended January 2, 2015, is as follows (in thousands):
		Number of			Weighted-		Aggregate
		Shares			Average		Intrinsic
					Remaining		Value
					Contractual
					Term
					(in years)
	Issued and unvested shares-October 3, 2014		1,720			2.6	$	37,203
	Granted		83
	Vested and released		(41	)
	Forfeited, canceled or expired		(18	)
	Issued and unvested-January 2, 2015		1,744			2.4	$	54,980
	Shares expected to vest		1,566			2.4	$	49,380
	The total fair value of restricted stock awards and units vesting was $949,000 for the three months ended January 2, 2015. As of January 2, 2015, total unrecognized compensation cost, adjusted for estimated forfeitures, related to restricted stock and units was $18.8 million, which is expected to be recognized over the next 3.4 years.
	As of January 2, 2015, total unrecognized compensation cost related to the ESPP was not material.
	Certain of the share-based awards granted and outstanding as of January 2, 2015, are subject to accelerated vesting upon a sale of the Company or similar changes in control.
	The financial impact of any modifications to share-based awards during the periods presented was immaterial.

Income_Taxes

Income Taxes	3 Months Ended
	Jan. 02, 2015
Income Tax Disclosure [Abstract]
Income Taxes	13. INCOME TAXES
	The Company is subject to income tax in the United States as well as other tax jurisdictions in which it conducts business. Earnings from non-U.S. activities are subject to local country income tax and may also be subject to current U.S. income tax. For interim periods, the Company records a tax provision or benefit based upon the estimated effective tax rate expected for the full fiscal year, adjusted for material discrete taxation matters arising during the interim periods.
	The difference between the U.S. federal statutory income tax rate of 35% and the Company’s effective income tax rates for the three months ended January 2, 2015 and January 3, 2014, was primarily impacted in both periods by changes in fair values of the common stock warrant liability which is not deductible nor taxable for tax purposes, income taxed in foreign jurisdictions at generally lower tax rates and non-deductible compensation, offset by U.S. state income taxes. For the three months ended January 2, 2015, the rate was also impacted by non-deductible merger expenses resulting from the BinOptics Acquisition.
	The balance of the unrecognized tax benefit as of January 2, 2015 and October 3, 2014 was $1.7 million and includes a $1.4 million reduction in current deferred tax assets and a $0.3 million increase in other long-term liabilities in the accompanying consolidated balance sheets. The entire balance of unrecognized tax benefits, if recognized, will reduce income tax expense. It is the Company’s policy to recognize any interest and penalties accrued related to unrecognized tax benefits in income tax expense. During the quarter ending January 2, 2015, the Company did not make any payment of interest and penalties. There was nothing accrued in the consolidated balance sheets for the payment of interest and penalties at January 2, 2015 as the remaining unrecognized tax benefits would only serve to reduce the Company’s current federal and state NOL carryforwards, if ultimately recognized.
	As disclosed in Note 1 our purchase accounting for BinOptics including Income Taxes is preliminary and subject to revision upon obtaining and analyzing all information. At the closing of the BinOptics Acquisition, BinOptics had, on a preliminary basis, federal net operating loss (NOL) carryforwards of approximately $38.4 million, which expire at various dates through 2034, and federal research and development tax credit carryforwards of $1.5 million. Although both the NOL and tax credit carryforwards are subject to change-in-control limitations within the Internal Revenue Code, we currently believe the limitation will not cause any of the carryforwards to expire unutilized. The aggregate net deferred income tax liability acquired in the BinOptics Acquisition is estimated to be $37.7 million, which includes a net deferred income tax asset of $14.9 million relating to NOL and tax credit carryforwards, and a net deferred income tax liability of $52.6 million related to the difference between the book and tax basis of the intangible and other assets acquired in the acquisition.

Related_Party_Transactions

Related Party Transactions	3 Months Ended
	Jan. 02, 2015
Related Party Transactions [Abstract]
Related Party Transactions	14. RELATED PARTY TRANSACTIONS
	GaAs Labs, LLC (GaAs Labs) a stockholder and an affiliate of directors and majority stockholders John and Susan Ocampo, engaged the Company to provide administrative and business development services provided to GaAs Labs on a time and materials basis. There are no minimum service requirements or payment obligations and the agreement may be terminated by either party with 30 days notice. For the three months ended January 2, 2015 and January 3, 2014, the Company had no billings with related parties and billed GaAs Labs $78,000, respectively, for services provided pursuant to this agreement and has recorded these amounts as other income in the accompanying condensed consolidated statements of operations.

Divestitures

Divestitures	3 Months Ended
	Jan. 02, 2015
Text Block [Abstract]
Divestitures	15. DIVESTITURES
	Upon closing the Mindspeed Acquisition, MACOM decided to divest the wireless business of Mindspeed. The operations of the wireless business are included in discontinued operations for the three months ended January 3, 2014. There was no gain or loss on the sale, which had a selling price of $12.0 million and which closed in February 2014. The accompanying consolidated statement of operations for the three months ended January 3, 2014 includes the following operating results related to the divested business (in thousands):
	Revenue	$	457
	Loss before income taxes		(3,374	)
	Benefit for income taxes		1,269
	Loss from discontinued operations, net		(2,105	)
	In fiscal year 2014, the Company sold non-core assets representing one product line, receiving cash proceeds aggregating $12.0 million. The Company has no continuing interests in these assets. There was no gain or loss on the sale, which closed in May 2014.

Supplemental_Cash_Flow_Informa

Supplemental Cash Flow Information	3 Months Ended
	Jan. 02, 2015
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	16. SUPPLEMENTAL CASH FLOW INFORMATION
	As of January 2, 2015 and January 3, 2014, the Company had $1.7 million and $1.2 million, respectively, in unpaid amounts related to purchases of property and equipment and intangibles included in accounts payable and accrued liabilities. These amounts have been excluded from the payments for purchases of property and equipment in the accompanying condensed consolidated statements of cash flows until paid.

Geographic_and_Significant_Cus

Geographic and Significant Customer Information	3 Months Ended
	Jan. 02, 2015
Segment Reporting [Abstract]
Geographic and Significant Customer Information	17. GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION
	The Company has one reportable operating segment which designs, develops, manufactures, and markets semiconductors and modules. The determination of the number of reportable operating segments is based on the chief operating decision maker’s use of financial information for the purposes of assessing performance and making operating decisions. In evaluating financial performance and making operating decisions, the chief operating decision maker primarily uses consolidated revenue, gross profit and operating income (loss).
	Information about the Company’s operations in different geographic regions, based upon customer locations, is presented below (in thousands):
			Three Months Ended
	Revenue by Geographic Region		January 2,			January 3,
			2015			2014
	United States		$	64,054		$	53,889
	International (1)			50,810			30,265
	Total		$	114,864		$	84,154
			As of
	Long-Lived Assets by Geographic Region		January 2,			October 3,
			2015			2014
	United States		$	49,219		$	42,031
	International (2)			10,174			8,326
	Total		$	59,393		$	50,357
	-1	No international countries represented greater than 10% of revenue during the periods presented.
	-2	No international country or region represented greater than 10% of the total net long-lived assets as of the dates presented, other than the Asia-Pacific region, which accounted for 13% at January 2, 2015 and 11% at October 3, 2014.
	The following is a summary of customer concentrations as a percentage of revenue and accounts receivable as of and for the periods presented:
			Three Months Ended
	Revenue		January 2,			January 3,
			2015			2014
	Customer A			19	%		23	%
	Customer B			16	%		24	%
	Customer C			10	%		—
			As of
	Accounts Receivable		January 2,			October 3,
			2015			2014
	Customer A			16	%		16	%
	Customer B			13	%		16	%
	Customer C			11	%		7	%
	No other customer represented more than 10% of revenue or accounts receivable in the periods presented in the accompanying consolidated financial statements. For the three months ended January 2, 2015 and January 3, 2014, ten customers represented an aggregate of 65% of revenue.

Description_of_Business_Basis_1

Description of Business, Basis of Presentation and Accounting (Policies)	3 Months Ended
	Jan. 02, 2015
Accounting Policies [Abstract]
Description of Business	Description of Business—M/A-COM Technology Solutions Holdings, Inc. (MACOM or the Company) was incorporated in Delaware on March 25, 2009. MACOM is a supplier of high-performance analog RF, microwave, millimeterwave and photonic semiconductor products that enable next-generation internet and modern battlefield applications. Headquartered in Lowell, Massachusetts, MACOM has offices in North America, Europe, Asia and Australia.
	The Company has one reportable operating segment which designs, develops, manufactures and markets semiconductors and modules.
Basis of Presentation	Basis of Presentation—The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (GAAP) and applicable rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations.
	The Company’s fiscal year ends on the Friday closest to the last day of September. For fiscal years in which there are 53 weeks, the first quarter reporting period includes 14 weeks. Fiscal year 2015 is 52 weeks in length and the three months ended January 2, 2015 includes 13 weeks. Fiscal year 2014 was 53 weeks in length and the three months ended January 3, 2014 includes 14 weeks.
	On December 15, 2014, MACOM completed the acquisition of BinOptics Corporation (BinOptics), a supplier of high-performance photonic products (BinOptics Acquisition). The BinOptics Acquisition was accounted for as a purchase, and the operations of BinOptics have been included in MACOM’s condensed consolidated financial statements since December 15, 2014, the date of acquisition.
	MACOM acquired Nitronex, LLC (Nitronex) in connection with a common-control business combination on February 13, 2014 (Nitronex Acquisition). Nitronex, a supplier of high-performance gallium nitride (GaN) semiconductors for RF, microwave, and millimeterwave applications, was previously acquired by GaAs Labs, LLC (GaAs Labs) on June 25, 2012. GaAs Labs is a stockholder in MACOM and GaAs Labs, Nitronex and MACOM were under common control from June 25, 2012 through February 13, 2014 due to a common controlling stockholder. The accompanying condensed financial statements for three months ended January 3, 2014 combine MACOM’s historical condensed consolidated financial statements with the historical financial statements of Nitronex from September 28, 2013 through January 3, 2014, and have been presented in a manner similar to a pooling-of-interests to include the results of operations of each business since the date of common control. Since February 13, 2014, the results of Nitronex are included with those of MACOM on a consolidated basis. The accompanying condensed consolidated financial statements are referred to as “consolidated” for all periods presented.
	On December 18, 2013, MACOM completed the acquisition of Mindspeed Technologies, Inc. (Mindspeed), a supplier of high-performance, analog semiconductor solutions for communications infrastructure applications (Mindspeed Acquisition). The Mindspeed Acquisition was accounted for as a purchase, and the operations of Mindspeed have been included in MACOM’s consolidated financial statements since December 18, 2013, the date of acquisition.
	These consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended October 3, 2014, filed with the SEC on December 9, 2014.
	In the opinion of management, the accompanying unaudited consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full fiscal year 2015. The condensed consolidated financial statements include the Company and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated.
Principles of Consolidation	Principles of Consolidation—The accompanying consolidated financial statements include the accounts of the Company and its majority-owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. Prior to the Nitronex Acquisition, MACOM and Nitronex, did not have material intracompany transactions.
Use of Estimates	Use of Estimates—The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the U.S. requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities during the reporting periods, the reported amounts of revenue and expenses during the reporting periods, and the disclosure of contingent assets and liabilities at the date of the financial statements. On an ongoing basis, the Company bases estimates and assumptions on historical experience, currently available information, and various other factors that management believes to be reasonable under the circumstances. Actual results may differ materially from these estimates and assumptions.
Discontinued Operations	Discontinued Operations—In the second quarter of fiscal year 2014, the Company sold assets of the non-core wireless business of Mindspeed and presented the divested businesses as assets held for sale as of the date of the Mindspeed Acquisition. The operating results of the business are reflected in discontinued operations.
Foreign Currency Translation and Remeasurement	Foreign Currency Translation and Remeasurement—The Company’s consolidated financial statements are presented in U.S. dollars. While the majority of the Company’s foreign operations use the U.S. dollar as the functional currency, the financial statements of the Company’s foreign operations for which the functional currency is not the U.S. dollar are translated into U.S. dollars at the exchange rates in effect at the balance sheet dates (for assets and liabilities) and at average exchange rates (for revenue and expenses). The unrealized translation gains and losses on the net investment in these foreign operations are accumulated as a component of other comprehensive income loss.
	The financial statements of the Company’s foreign operations where the functional currency is the U.S. dollar, but where the underlying transactions are transacted in a different currency, are re-measured at the exchange rate in effect at the balance sheet date with respect to monetary assets and liabilities. Nonmonetary assets and liabilities, such as inventories and property and equipment, and related statements of operations accounts, such as cost of revenue and depreciation, are remeasured at historical exchange rates. Revenue and expenses, other than cost of revenue, amortization and depreciation, are translated at the average exchange rate for the period in which the transaction occurred. The net gains (losses) on foreign currency remeasurement are reflected in selling, general and administrative expense in the accompanying consolidated statements of operations. The Company’s recognized net gains and losses on foreign exchange are included in selling, general and administrative expense and for all periods presented were immaterial.
Revenue Recognition	Revenue Recognition—The Company recognizes revenue when: (i) persuasive evidence of an arrangement exists; (ii) delivery or services have been rendered; (iii) the price is fixed or determinable, and (iv) collectability is reasonably assured. The Company recognizes revenue with the transfer of title and risk of loss, and provide for reserves for returns and other allowances.
	The Company generally does not provide customers other than distributors the right to return product, with the exception of warranty related matters. Accordingly, the Company does not maintain a reserve for such customers. Shipping and handling fees billed to customers are recorded as revenue while the related costs are classified as a component of revenue. The Company provides warranties for its products and accrues the cost of warranty claims in the period the related revenue is recorded.
	Certain agreements with distribution customers provide for rights of return and price protection until such time as the Company’s products are sold by the distributors to their customers and, until the quarter ended January 2, 2015, the Company recognizes revenue from sales under such agreements when the distributor resold the product to its end customer (the sell-through basis of recognizing revenue). In the first quarter ended January 2, 2015, the Company completed an evaluation of our revenue recognition methodology relating to distributors and concluded that it was more appropriate to recognize revenues on sales to distributors at the time of shipment to a distributor (the sell-in basis of recognizing revenue).
	Prior to the first quarter, the Company had concluded that it had insufficient information as well as limited experience in estimating the effect of the right of distributors to return product and price protection and, accordingly, used the sell through method of revenue recognition. The Company had recently concluded a study of three years of distributor related transactions in addition to its ongoing efforts to standardize its revenue recognition policies and believes the Company now has sufficient data to reach the conclusion that sales and revenues relating to distributor transactions are capable of reasonable estimation. Accordingly, the Company implemented the sell-in method of accounting for sales to distributors. The Company recorded adjustments during the first quarter ended January 2, 2015 related to this change to recognize previously deferred revenues and to establish a reserve of $5.5 million against distributor sales. The net effect was a one-time increase of $15.1 million for both previously deferred revenue and current period revenue. Additionally, the Company recognized the related inventory costs of $4.7 million. The foregoing resulted in a reduction of net loss by $8.5 million and a reduction of earnings per share loss of $0.18 per share.
	In determining the new reserve amount, the Company noted that distributor payments are due under agreed terms and are not contingent upon resale or any other matter other than the passage of time. The Company has agreements with some distributors and customers for various programs, including pricing protection, obsolete inventory, new products and stock rotation. Sales to these distributors and customers, as well as the existence of sales incentive programs, are in accordance with terms set forth in written agreements with these distributors and customers. In general, credits allowed under these programs are capped based upon individual distributor agreements. The Company records charges associated with these programs as a reduction of revenue at the time of sale based upon historical activity. The Company’s policy is to use a twelve month rolling historical experience rate as well as an estimated general reserve percentage in order to estimate the necessary allowance to be recorded.
Recent Accounting Standards	Recent Accounting Standards—Under the Jumpstart Our Business Startups Act (JOBS Act), the Company meets the definition of an emerging growth company. The Company has elected to avail itself of the extended transition period for complying with new or revised accounting standards pursuant to Section 107(b) of the JOBS Act.
	In April 2014, the FASB issued Accounting Standards Update 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity (ASU 2014-08), which raises the threshold for disposals to qualify as discontinued operations. A discontinued operation is defined as: (1) a component of an entity or group of components that has been disposed of or classified as held for sale and represents a strategic shift that has or will have a major effect on an entity’s operations and financial results; or (2) an acquired business that is classified as held for sale on the acquisition date. ASU 2014-08 also requires additional disclosures regarding discontinued operations, as well as material disposals that do not meet the definition of discontinued operations. The application of this guidance is prospective from the date of adoption and applies only to disposals (or new classifications to held for sale) that have not been reported as discontinued operations in previously issued financial statements.
	In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers. ASU 2014-09 requires revenue recognition to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 sets forth a new revenue recognition model that requires identifying the contract, identifying the performance obligations, determining the transaction price, allocating the transaction price to performance obligations and recognizing the revenue upon satisfaction of performance obligations. The amendments in the ASU can be applied either retrospectively to each prior reporting period presented or retrospectively with the cumulative effect of initially applying the update recognized at the date of the initial application along with additional disclosures. The Company is currently evaluating the impact of ASU 2014-09, which is effective for the Company in its fiscal year beginning on September 30, 2017.

Acquisitions_Tables

Acquisitions (Tables)	3 Months Ended
	Jan. 02, 2015
Summary of Operating Results Through Dates of Divestiture Related to Divested Businesses	The accompanying consolidated statement of operations for the three months ended January 3, 2014 includes the following operating results related to the divested business (in thousands):
	Revenue	$	457
	Loss before income taxes		(3,374	)
	Benefit for income taxes		1,269
	Loss from discontinued operations, net		(2,105	)
BinOptics Corporation [Member]
Schedule of Aggregate Purchase Price Allocated to Tangible and Identifiable Intangible Assets Acquired and Liabilities Assumed	The aggregate purchase price for BinOptics is being allocated to the tangible and identifiable intangible assets acquired and liabilities assumed based on their estimated fair values at the date of acquisition. The excess of the purchase price over the fair value of the acquired net assets represents cost and revenue synergies specific to the Company, as well as non-capitalizable intangible assets, such as the employee workforce acquired, and has been allocated to goodwill, none of which is tax deductible. A preliminary allocation follows (in thousands):
		Amount
	Current assets	$	41,836
	Intangible assets		135,254
	Other assets		14,090
	Total assets acquired		191,180
	Liabilities assumed:
	Debt		1,491
	Deferred income taxes		37,745
	Other liabilities		12,810
	Total liabilities assumed		52,046
	Net assets acquired		139,134
	Consideration:
	Cash paid upon closing, net of cash acquired		224,114
	Goodwill	$	84,980
Components of Acquired Intangible Assets on a Preliminary Basis	The components of the acquired intangible assets on a preliminary basis were as follows (in thousands):
		Amount			Useful Lives
					(Years)
	Developed technology	$	17,954		7
	Customer relationships		113,500		10
	Backlog		3,800		1
		$	135,254
Summary of Revenue and Earnings	The following is a summary of BinOptics revenue and earnings, included in MACOM’s accompanying condensed consolidated statements of operations for the three months ended January 2, 2015 (in thousands):
	Revenue	$	2,128
	Loss from continuing operations before income taxes		(1,379	)
Summary of Unaudited Supplemental Pro Forma Data	This pro forma data is presented for informational purposes only and does not purport to be indicative of the Company’s future results of operations.
		Three months ended
		January 2,			January 3,
		2015			2014
	Revenue	$	126,731		$	90,764
	Net loss		(7,611	)		(11,727	)
Mindspeed Acquisition [Member]
Schedule of Aggregate Purchase Price Allocated to Tangible and Identifiable Intangible Assets Acquired and Liabilities Assumed	The final allocation of purchase price is as follows:
		Amount
	Current assets	$	50,612
	Intangible assets		138,663
	Deferred income taxes		92,881
	Other assets		31,788
	Total assets acquired		313,944
	Liabilities assumed:
	Current liabilities		35,270
	Debt		40,177
	Other liabilities		5,865
	Total liabilities assumed		81,312
	Net assets acquired		232,632
	Consideration:
	Cash paid upon closing, net of cash acquired		232,028
	Fair value of vested awards assumed in acquisition		785
	Total consideration		232,813
	Goodwill	$	181
Components of Acquired Intangible Assets on a Preliminary Basis	The components of the acquired intangible assets were as follows (in thousands):
		Amount			Useful Lives
					(Years)
	Developed technology	$	109,263		7
	Customer relationships		11,430		10
	In-process research and development		17,970		N/A
		$	138,663
Summary of Revenue and Earnings	The following is a summary of Mindspeed’s revenue and earnings, included in MACOM’s accompanying condensed consolidated statements of operations for the three months ended January 3, 2014 (in thousands):
	Revenue	$	1,253
	Loss from continuing operations before income taxes and restructuring charges		(3,598	)
Summary of Unaudited Supplemental Pro Forma Data	This pro forma data is presented for informational purposes only and does not purport to be indicative of the Company’s future results of operations.
		January 3, 2014
	Revenue	$	102,924
	Net loss		(8,078	)
Summary of Operating Results Through Dates of Divestiture Related to Divested Businesses	The accompanying consolidated statement of operations for the three months ended January 3, 2014 includes the following operating results related to the business to be divested (in thousands):
	Revenue	$	457
	Loss before income taxes		(3,374	)
	Benefit for income taxes		1,269
	Loss from discontinued operations, net		(2,105	)

Financial_Instruments_Tables

Financial Instruments (Tables)	3 Months Ended
	Jan. 02, 2015
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on Recurring Basis	Assets and liabilities measured at fair value on a recurring basis consist of the following (in thousands):
		January 2, 2015
		Fair		Active			Observable		Unobservable
		Value		Markets			Inputs		Inputs
				for			(Level 2)		(Level 3)
				Identical
				Assets
				(Level 1)
	Assets
	Trading securities	$	250	$	—		$	—	$	250
	Total assets measured at fair value	$	250	$	—		$	—	$	250
	Liabilities
	Contingent consideration	$	820	$	—		$	—	$	820
	Common stock warrant liability		26,409		—			—		26,409
	Total liabilities measured at fair value	$	27,229	$	—		$	—	$	27,229
		October 3, 2014
		Fair		Active			Observable		Unobservable
		Value		Markets			Inputs		Inputs
				for			(Level 2)		(Level 3)
				Identical
				Assets
				(Level 1)
	Assets
	Trading securities	$	250	$	—		$	—	$	250
	Total assets measured at fair value	$	250	$	—		$	—	$	250
	Liabilities
	Contingent consideration	$	820	$	—		$	—	$	820
	Common stock warrant liability		15,801		—			—		15,801
	Total liabilities measured at fair value	$	16,621	$	—		$	—	$	16,621
Changes in Assets and Liabilities with Inputs Classified within Level 3 of Fair Value	The changes in assets and liabilities with inputs classified within Level 3 of the fair value hierarchy consist of the following (in thousands):
		Three Months Ended January 2, 2015
		October 3,		Net Realized/			Purchases		Sales and		Transfers in		January 2,
		2014		Unrealized			and		Settlements		and/or (out)		2015
				Losses (Gains)			Issuances				of Level 3
				Included in
				Earnings
	Trading securities	$	250	$	—		$	—	$	—	$	—	$	250
	Contingent consideration	$	820	$	—		$	—	$	—	$	—	$	820
	Common stock warrant liability	$	15,801	$	10,608		$	—	$	—	$	—	$	26,409
		Three Months Ended January 3, 2014
		September 27,		Net Realized/			Purchases		Sales and		Transfers in		January 3,
		2013		Unrealized			and		Settlements		and/or (out)		2014
				Losses (Gains)			Issuances				of Level 3
				Included in
				Earnings
	Common stock warrant liability	$	11,873	$	(1,282	)	$	—	$	—	$	—	$	10,591

Inventories_Tables

Inventories (Tables)	3 Months Ended
	Jan. 02, 2015
Inventory Disclosure [Abstract]
Components of Inventories	Inventories consist of the following (in thousands):
		January 2,		October 3,
		2015		2014
	Raw materials	$	42,068	$	34,919
	Work-in-process		4,249		5,500
	Finished goods		42,891		33,153
	Total	$	89,208	$	73,572

Property_and_Equipment_Tables

Property and Equipment (Tables)	3 Months Ended
	Jan. 02, 2015
Property, Plant and Equipment [Abstract]
Components of Property and Equipment	Property and equipment consists of the following (in thousands):
		January 2,			October 3,
		2015			2014
	Machinery and equipment	$	75,027		$	68,438
	Leasehold improvements		8,594			7,998
	Furniture and fixtures		1,139			1,017
	Construction in process		18,511			12,918
	Computer equipment and software		7,758			7,758
	Total property and equipment		111,029			98,129
	Less accumulated depreciation and amortization		(51,636	)		(47,772	)
	Property and equipment — net	$	59,393		$	50,357

Debt_Tables

Debt (Tables)	3 Months Ended
	Jan. 02, 2015
Debt Disclosure [Abstract]
Schedule of Remained Outstanding on Term Loans	As of January 2, 2015, the following remained outstanding on the Term Loans:
	Principal balance	$	348,250
	Unamortized discount		(2,375	)
			345,875
	Current portion		3,500
	Long-term, less current portion	$	342,375
Schedule of Minimum Principal Payments under Term Loans	As of January 2, 2015, the minimum principal payments under the Term Loans in future fiscal years was as follows (in thousands):
	2015 (rest of fiscal year)	$	2,625
	2016		3,500
	2017		3,500
	2018		3,500
	2019		3,500
	Thereafter		331,625
	Total	$	348,250

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Jan. 02, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Summary of Amortization Expense of Intangible Assets	Amortization expense related to intangible assets is as follows (in thousands):
		Three Months Ended
		January 2,			January 3,
		2015			2014
	Cost of revenue	$	5,359		$	1,968
	Selling, general and administrative		1,053			385
	Total	$	6,412		$	2,353
Summary of Intangible Assets	Intangible assets consist of the following (in thousands):
		January 2,			October 3,
		2015			2014
	Acquired technology	$	150,757		$	131,953
	Customer relationships		138,170			24,670
	In-process research and development		17,970			17,970
	Trade name		3,400			3,400
	Backlog		3,800			—
	Total		314,097			177,993
	Less accumulated amortization		(41,772	)		(35,360	)
	Intangible assets — net	$	272,325		$	142,633
Summary of Activity in Intangible Assets and Goodwill	A summary of the activity in intangible assets and goodwill follows (in thousands):
		Total			Acquired			Customer		In-Process		Trade		Backlog		Goodwill
					Technology			Relationships		Research and		Name
										Development
	Balance at October 3, 2014	$	188,777		$	131,953		$	24,670	$	17,970	$	3,400	$	—	$	10,784
	BinOptics acquisition		220,234			17,954			113,500		—		—		3,800		84,980
	Other intangibles purchased		850			850			—		—		—		—		—
	Balance at January 2, 2015	$	409,861		$	150,757		$	138,170	$	17,970	$	3,400	$	3,800	$	95,764
Summary of Estimated Amortization of Intangible Assets in Future Fiscal Years	As of January 2, 2015, estimated amortization of the intangible assets in future fiscal years, subject to the completion of the purchase price allocation for the BinOptics Acquisition, was as follows (in thousands):
	2015 (rest of fiscal year)	$	31,256
	2016		34,071
	2017		34,143
	2018		32,760
	2019		31,019
	Thereafter		89,977
	Total	$	253,226

Income_Loss_Per_Share_Tables

Income (Loss) Per Share (Tables)	3 Months Ended
	Jan. 02, 2015
Earnings Per Share [Abstract]
Computation for Basic and Diluted Net Income (Loss) Per Share of Common Stock	The following table sets forth the computation for basic and diluted net income per share of common stock (in thousands, except per share data):
		Three Months Ended
		January 2,			January 3,
		2015			2014
	Numerator:
	Net loss	$	(6,306	)	$	(8,921	)
	Denominator:
	Weighted average common shares outstanding-basic		47,606			46,517
	Dilutive effect of options, restricted stock and warrants		—			—
	Weighted average common shares outstanding-diluted		47,606			46,517
	Common stock loss per share:
	Basic	$	(0.13	)	$	(0.19	)
	Diluted	$	(0.13	)	$	(0.19	)

Restructurings_Tables

Restructurings (Tables)	3 Months Ended
	Jan. 02, 2015
Restructuring and Related Activities [Abstract]
Summary of Costs Related to Restructuring Actions	The following is a summary of the costs incurred and remaining balances included in accrued expenses related to restructuring actions taken (in thousands):
	Balance-October 3, 2014	$	801
	Current period charges - continuing operations		—
	Payments		(734	)
	Balance-January 2, 2015	$	67

ShareBased_Compensation_Tables

Share-Based Compensation (Tables)	3 Months Ended
	Jan. 02, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Effects of Stock-Based Compensation Expense Related to Stock-Based Awards to Employees and Nonemployees	The following table presents the effects of share-based compensation expense related to share-based awards to employees and non-employees in the Company’s consolidated statements of operations during the periods presented (in thousands):
		Three Months Ended
		January 2,			January 3,
		2015			2014
	Cost of revenue	$	346		$	283
	Research and development		962			484
	Selling, general and administrative		1,851			1,078
	Total stock-based compensation expense	$	3,159		$	1,845
Summary of Stock Option Activity	A summary of stock option activity for the three months ended January 2, 2015, is as follows (in thousands, except per share amounts):
		Number of			Weighted-		Weighted-		Aggregate
		Shares			Average		Average		Intrinsic
					Exercise Price		Remaining		Value
					Per Share		Contractual
							Term
							(in years)
	Outstanding-October 3, 2014		948		$	11.73		6.6	$	10,015
	Granted		—			—
	Exercised		(45	)		8.64
	Forfeited, canceled or expired		—			—
	Outstanding-January 2, 2015		903		$	11.87		6.5	$	17,949
	Options vested and expected to vest as of January 2, 2015		820		$	11.3		6.3	$	16,781
	Options vested and exercisable as of January 2, 2015		523		$	7.77		4.6	$	12,622
Summary of Restricted Stock and Restricted Stock Units Activity	A summary of restricted stock and restricted stock units’ activity for the three months ended January 2, 2015, is as follows (in thousands):
		Number of			Weighted-		Aggregate
		Shares			Average		Intrinsic
					Remaining		Value
					Contractual
					Term
					(in years)
	Issued and unvested shares-October 3, 2014		1,720			2.6	$	37,203
	Granted		83
	Vested and released		(41	)
	Forfeited, canceled or expired		(18	)
	Issued and unvested-January 2, 2015		1,744			2.4	$	54,980
	Shares expected to vest		1,566			2.4	$	49,380

Geographic_and_Significant_Cus1

Geographic and Significant Customer Information (Tables)	3 Months Ended
	Jan. 02, 2015
Segment Reporting [Abstract]
Summary of Different Geographic Regions	Information about the Company’s operations in different geographic regions, based upon customer locations, is presented below (in thousands):
			Three Months Ended
	Revenue by Geographic Region		January 2,			January 3,
			2015			2014
	United States		$	64,054		$	53,889
	International (1)			50,810			30,265
	Total		$	114,864		$	84,154
			As of
	Long-Lived Assets by Geographic Region		January 2,			October 3,
			2015			2014
	United States		$	49,219		$	42,031
	International (2)			10,174			8,326
	Total		$	59,393		$	50,357
	-1	No international countries represented greater than 10% of revenue during the periods presented.
	-2	No international country or region represented greater than 10% of the total net long-lived assets as of the dates presented, other than the Asia-Pacific region, which accounted for 13% at January 2, 2015 and 11% at October 3, 2014.
Summary of Customer Concentrations as Percentage of Total Sales and Accounts Receivable	The following is a summary of customer concentrations as a percentage of revenue and accounts receivable as of and for the periods presented:
			Three Months Ended
	Revenue		January 2,			January 3,
			2015			2014
	Customer A			19	%		23	%
	Customer B			16	%		24	%
	Customer C			10	%		—
			As of
	Accounts Receivable		January 2,			October 3,
			2015			2014
	Customer A			16	%		16	%
	Customer B			13	%		16	%
	Customer C			11	%		7	%

Nature_of_Business_and_Basis_o

Nature of Business and Basis of Presentation - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended		12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Jan. 02, 2015	Jan. 02, 2015	Jan. 03, 2014	Oct. 03, 2014
		Segment
Description Of Business And Basis Of Presentation [Line Items]
Number of reportable operating segment		1
Reporting period description	Fiscal year 2015 is 52 weeks in length	Three months ended January 2, 2015 includes 13 weeks	three months ended January 3, 2014 includes 14 weeks	Fiscal year 2014 was 53 weeks in length
Number of weeks in period	52 weeks	13 weeks	14 weeks	53 weeks
Deferred revenue for distributor sales	$17	$17
Sales reserve associated with inventory		4.5
Reserve for net revenue impact on distributor sales	5.5	5.5
Net revenue impact		15.1
Increase (Decrease) in net income		-8.5
Inventory cost	4.7	4.7
Increase (Decrease) to earnings per share		($0.18)
Deferred Inventory [Member]
Description Of Business And Basis Of Presentation [Line Items]
Deferred revenue for distributor sales	4.4	4.4
Sales reserve associated with inventory		$1
Nitronex LLC [Member]
Description Of Business And Basis Of Presentation [Line Items]
Date of acquisition		13-Feb-14

Acquisitons_Additional_Informa

Acquisitons - Additional Information (Detail) (USD $)	0 Months Ended	3 Months Ended		0 Months Ended		12 Months Ended
	Dec. 15, 2014	Jan. 02, 2015	Jan. 03, 2014	Feb. 13, 2014	Nov. 17, 2014	Oct. 03, 2014	Dec. 18, 2013
Business Acquisition [Line Items]
Outstanding shares of common stock, par value		$0.00
Purchase price of acquisition		$223,070,000	$232,028,000
Business acquisition, intangible assets	135,254,000
Contingent purchase price, maximum						1,300,000
Goodwill acquired, deductible for tax purpose						1,700,000
Minority investment in equity		5,000,000
Equity investment for other than temporary impairment		0
Convertible Debt [Member]
Business Acquisition [Line Items]
Minority investment in the convertible debt		300,000
Maximum [Member]
Business Acquisition [Line Items]
Contingent purchase price, maximum		1,300,000
Minority equity investment percentage		20.00%
Nitronex LLC [Member]
Business Acquisition [Line Items]
Date of acquisition		13-Feb-14
Business acquisition cost of acquired entity, cash paid				26,100,000
Escrow deposit				3,900,000
Escrow agreement expiration period		2015-08
Mindspeed Acquisition [Member]
Business Acquisition [Line Items]
Date of acquisition		18-Dec-13
Aggregate consideration payable		232,813,000
Business combination acquisition related costs		4,500,000
Weighted-average life of identified intangible assets acquired		7 years
Outstanding shares of common stock, par value							$0.01
Outstanding shares of common stock at a purchase price per share							$5.05
Purchase price of acquisition		232,028,000
Liabilities and incurred costs		81,312,000
The fair value of the assumed options and stock awards		4,100,000
Stock option vested		785,000
Business acquisition, intangible assets		138,663,000
BinOptics Corporation [Member]
Business Acquisition [Line Items]
Date of acquisition					15-Dec-14
Aggregate consideration payable					224,100,000
Business combination cash on hand and incurrence of additional borrowing					100,000,000
Business combination acquisition related costs		4,600,000
Weighted-average life of identified intangible assets acquired		9 years 3 months 18 days
Purchase price of acquisition	224,114,000
Liabilities and incurred costs	-52,046,000
Business acquisition, goodwill		84,980,000
Business acquisition, intangible assets		220,234,000
Other Acquisitions [Member]
Business Acquisition [Line Items]
Business acquisition, goodwill						3,900,000
Business acquisition, intangible assets						1,600,000
Other Acquisitions [Member] | Minimum [Member]
Business Acquisition [Line Items]
Weighted-average life of identified intangible assets acquired		7 years
Other Acquisitions [Member] | Maximum [Member]
Business Acquisition [Line Items]
Weighted-average life of identified intangible assets acquired		10 years
Photenics Controls [Member]
Business Acquisition [Line Items]
Contingent consideration liability						800,000
I.K.E., Incorporated (IKE Micro) and Photonic Controls, LLC (Photonic Controls) [Member]
Business Acquisition [Line Items]
Aggregate consideration payable			$2,800,000
Number of Businesses Acquired			2

Acquisitions_Schedule_of_Aggre

Acquisitions - Schedule of Aggregate Purchase Price Allocated to Tangible and Identifiable Intangible Assets Acquired and Liabilities Assumed (Detail) (USD $)	3 Months Ended		0 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Jan. 03, 2014	Dec. 15, 2014	Nov. 17, 2014	Oct. 03, 2014
Consideration:
Cash paid upon closing, net of cash acquired	$223,070	$232,028
Goodwill	95,764				10,784
BinOptics Corporation [Member]
Business Acquisition [Line Items]
Current assets			41,836
Intangible assets			135,254
Deferred income taxes	14,900		37,745
Other assets			14,090
Total assets acquired			191,180
Liabilities assumed:
Debt			1,491
Deferred income taxes	14,900		37,745
Other liabilities			12,810
Total liabilities assumed			-52,046
Net assets acquired			139,134
Consideration:
Cash paid upon closing, net of cash acquired			224,114
Total consideration				224,100
Goodwill			84,980
Mindspeed Acquisition [Member]
Business Acquisition [Line Items]
Current assets	50,612
Intangible assets	138,663
Deferred income taxes	92,881
Other assets	31,788
Total assets acquired	313,944
Liabilities assumed:
Current liabilities	35,270
Debt	40,177
Deferred income taxes	92,881
Other liabilities	5,865
Total liabilities assumed	81,312
Net assets acquired	232,632
Consideration:
Cash paid upon closing, net of cash acquired	232,028
Fair value of vested awards assumed in acquisition	785
Total consideration	232,813
Goodwill	$181

Acquisitions_Components_of_Acq

Acquisitions - Components of Acquired Intangible Assets on a Preliminary Basis (Detail) (USD $)	0 Months Ended	3 Months Ended
In Thousands, unless otherwise specified	Dec. 15, 2014	Jan. 02, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets	$135,254
BinOptics Corporation [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets		220,234
Mindspeed Acquisition [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets		138,663
Developed Technology [Member] | BinOptics Corporation [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets	17,954
Acquired intangible assets, Useful Lives	7 years
Developed Technology [Member] | Mindspeed Acquisition [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets		109,263
Acquired intangible assets, Useful Lives		7 years
Customer Relationships [Member] | BinOptics Corporation [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets	113,500	113,500
Acquired intangible assets, Useful Lives	10 years
Customer Relationships [Member] | Mindspeed Acquisition [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets		11,430
Acquired intangible assets, Useful Lives		10 years
In-Process Research and Development [Member] | Mindspeed Acquisition [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets		17,970
Backlog [Member] | BinOptics Corporation [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets	$3,800	$3,800
Acquired intangible assets, Useful Lives	7 years

Acquisitions_Summary_of_Revenu

Acquisitions - Summary of Revenue and Earnings (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Jan. 03, 2014
BinOptics Corporation [Member]
Business Acquisition [Line Items]
Revenue	$2,128
Loss from continuing operations before income taxes and restructuring charges	-1,379
Mindspeed Acquisition [Member]
Business Acquisition [Line Items]
Revenue		1,253
Loss from continuing operations before income taxes and restructuring charges		($3,598)

Acquisitions_Summary_of_Unaudi

Acquisitions - Summary of Unaudited Supplemental Pro Forma Data (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Jan. 03, 2014
BinOptics Corporation [Member]
Business Acquisition [Line Items]
Revenue	$126,731	$90,764
Net loss	-7,611	-11,727
Mindspeed Acquisition [Member]
Business Acquisition [Line Items]
Revenue		102,924
Net loss		($8,078)

Acquisitions_Summary_of_Operat

Acquisitions - Summary of Operating Results Through Dates of Divestitures Related to Divested Business (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Jan. 03, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	$457
Loss before income taxes	-3,374
Benefit for income taxes	-1,269
Loss from discontinued operations, net	-2,105
Mindspeed Acquisition [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	457
Loss before income taxes	-3,374
Benefit for income taxes	1,269
Loss from discontinued operations, net	($2,105)

Financial_Instruments_Assets_a

Financial Instruments - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (Fair Value, Measurements, Recurring [Member], USD $)	Jan. 02, 2015	Oct. 03, 2014
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$250	$250
Total liabilities measured at fair value	27,229	16,621
Trading Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	250	250
Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	820	820
Common Stock Warrant Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	26,409	15,801
Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	250	250
Total liabilities measured at fair value	27,229	16,621
Unobservable Inputs (Level 3) [Member] | Trading Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	250	250
Unobservable Inputs (Level 3) [Member] | Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	820	820
Unobservable Inputs (Level 3) [Member] | Common Stock Warrant Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	$26,409	$15,801

Financial_Instruments_Changes_

Financial Instruments - Changes in Assets and Liabilities with Inputs Classified within Level 3 of Fair Value (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Jan. 03, 2014
Trading Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Changes in financial asset with inputs classified within Level 3 of the fair value, beginning balance	$250
Net Realized/ Unrealized Losses (Gains) Included in Earnings	0
Purchases and Issuances	0
Sales and Settlements	0
Transfers in and/or (out) of Level 3	0
Changes in financial asset with inputs classified within Level 3 of the fair value, ending balance	250
Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Changes in financial liabilities with inputs classified within Level 3 of the fair value, beginning balance	820
Purchases and Issuances	0
Sales and Settlements	0
Transfers in and/or (out) of Level 3	0
Changes in financial liabilities with inputs classified within Level 3 of the fair value, ending balance	820
Common Stock Warrant Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Changes in financial liabilities with inputs classified within Level 3 of the fair value, beginning balance	15,801	11,873
Net Realized/ Unrealized Losses (Gains) Included in Earnings	10,608	-1,282
Purchases and Issuances	0	0
Sales and Settlements	0	0
Transfers in and/or (out) of Level 3	0	0
Changes in financial liabilities with inputs classified within Level 3 of the fair value, ending balance	$26,409	$10,591

Financial_Instruments_Addition

Financial Instruments - Additional Information (Detail) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Jan. 02, 2015	Oct. 03, 2014
Fair Value Measurements Of Financial Instruments [Line Items]
Expected life of common stock warrants	6 years
Expected volatility	39.40%
Risk free rate	1.90%
Contingent consideration, maximum		$1.30
Maximum [Member]
Fair Value Measurements Of Financial Instruments [Line Items]
Contingent consideration, maximum	$1.30

Inventories_Components_of_Inve

Inventories - Components of Inventories (Detail) (USD $)	Jan. 02, 2015	Oct. 03, 2014
In Thousands, unless otherwise specified
Inventory Disclosure [Abstract]
Raw materials	$42,068	$34,919
Work-in-process	4,249	5,500
Finished goods	42,891	33,153
Total	$89,208	$73,572

Property_and_Equipment_Compone

Property and Equipment - Components of Property and Equipment (Detail) (USD $)	Jan. 02, 2015	Oct. 03, 2014
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]
Total property and equipment	$111,029	$98,129
Less accumulated depreciation and amortization	-51,636	-47,772
Property and equipment - net	59,393	50,357
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	75,027	68,438
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	8,594	7,998
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	1,139	1,017
Construction in Process [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	18,511	12,918
Computer Equipment and Software [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment	$7,758	$7,758

Property_and_Equipment_Additio

Property and Equipment - Additional Information (Detail) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Jan. 02, 2015	Jan. 03, 2014
Property, Plant and Equipment [Abstract]
Depreciation and amortization expense	$3.90	$3.20

Debt_Additional_Information_De

Debt - Additional Information (Detail) (USD $)	0 Months Ended		3 Months Ended
	8-May-14	Sep. 26, 2013	Jan. 02, 2015	Jan. 03, 2014
Debt Instrument [Line Items]
Indebtedness on revolving credit facility		$245,000,000	$100,000,000	$220,000,000
Repayment of outstanding credit facility	245,000,000
Term loan, Prime rate			0.75%
Estimated fair value of Term Loans			343,000,000
BinOptics Corporation [Member]
Debt Instrument [Line Items]
Indebtedness on revolving credit facility			100,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility maturity date			30-Sep-18
Revolving credit facility amended date			5-Nov-13
Revolving credit facility maximum borrowing availability		300,000,000
Credit facility, remaining borrowing capacity			0
Debt issuance fee			8,700,000
Unamortized deferred financing costs			7,800,000
Revolving Credit Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Percentage of unused line fee			0.25%
Revolving Credit Facility [Member] | Minimum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Applicable margin rate			2.00%
Revolving Credit Facility [Member] | Minimum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Applicable margin rate			1.00%
Revolving Credit Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Percentage of unused line fee			0.38%
Revolving Credit Facility [Member] | Maximum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Applicable margin rate			2.50%
Revolving Credit Facility [Member] | Maximum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Applicable margin rate			1.50%
Term Loans [Member]
Debt Instrument [Line Items]
Revolving credit facility maturity date			31-May-21
Revolving credit facility maximum borrowing availability			348,250,000
Deferred financing costs	2,100,000
Term loan discount rate			0.75%
Revolving credit facility interest rate			Borrowings under the Revolving Facility bear interest (payable quarterly) at (i) for LIBOR loans, a rate per annum equal to the LIBOR rate, plus an applicable margin in the range of 2.00% to 2.50% (based on the Companybs total net leverage ratio being within certain defined ranges), and (ii) for base rate loans, a rate per annum equal to the prime rate, plus an applicable margin in the range of 1.00% to 1.50% (based on the Companybs total net leverage ratio being within certain defined ranges).
Term loans payment term			The Term Loans are payable in quarterly principal installments equal to 0.25% of the aggregate dollar amount of all Term Loans outstanding at the signing of the Credit Agreement, beginning on the last business day of September 2014, with the remainder due on the maturity date.
Percentage of quarterly principal installment			0.25%
Principal amount			348,250,000
Term Loans [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Floor rate			0.75%
Applicable margin rate			3.75%
Term Loans [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Floor rate			1.75%
Applicable margin rate			2.75%
Revolving Credit Facility One [Member]
Debt Instrument [Line Items]
Revolving credit facility maturity date			31-May-19
Revolving credit facility maximum borrowing availability			$100,000,000

Debt_Schedule_of_Remained_Outs

Debt - Schedule of Remained Outstanding on Term Loans (Detail) (USD $)	Jan. 02, 2015	Oct. 03, 2014
In Thousands, unless otherwise specified
Debt Instrument [Line Items]
Current portion	$3,500	$3,478
Long-term, less current portion	442,375	343,178
Term Loans [Member]
Debt Instrument [Line Items]
Principal balance	348,250
Unamortized discount	-2,375
Long-term including current portion	345,875
Long-term including current portion	345,875
Current portion	3,500
Long-term, less current portion	$342,375

Debt_Schedule_of_Minimum_Princ

Debt - Schedule of Minimum Principal Payments under Term Loans (Detail) (Term Loans [Member], USD $)	Jan. 02, 2015
In Thousands, unless otherwise specified
Term Loans [Member]
Debt Instrument [Line Items]
2015 (rest of fiscal year)	$2,625
2016	3,500
2017	3,500
2018	3,500
2019	3,500
Thereafter	331,625
Total	$348,250

Intangible_Assets_Summary_of_A

Intangible Assets - Summary of Amortization Expense of Intangible Assets (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Jan. 03, 2014
Finite-Lived Intangible Assets [Line Items]
Total	$6,412	$2,353
Cost of Revenue [Member]
Finite-Lived Intangible Assets [Line Items]
Total	5,359	1,968
Selling, General and Administrative [Member]
Finite-Lived Intangible Assets [Line Items]
Total	$1,053	$385

Intangible_Assets_Summary_of_I

Intangible Assets - Summary of Intangible Assets (Detail) (USD $)	Jan. 02, 2015	Oct. 03, 2014	Jan. 03, 2014
In Thousands, unless otherwise specified
Finite-Lived Intangible Assets [Line Items]
Intangible assets	$314,097	$177,993
Less accumulated amortization	-41,772	-35,360
Intangible assets - net	272,325	142,633
Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	150,757	131,953
Less accumulated amortization	-33,100		-27,800
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	138,170	24,670
Less accumulated amortization	-8,600		-7,600
Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	3,800
In-Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	17,970	17,970
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	$3,400	$3,400

Intangible_Assets_Summary_of_A1

Intangible Assets - Summary of Activity in Intangible Assets and Goodwill (Detail) (USD $)	0 Months Ended	3 Months Ended
In Thousands, unless otherwise specified	Dec. 15, 2014	Jan. 02, 2015	Oct. 03, 2014
Finite-Lived Intangible Assets [Line Items]
Balance at October 3, 2014		$188,777
Net intangibles acquired	135,254
Other intangibles purchased		850
Balance at January 2, 2015		409,861
Balance at October 3, 2014		10,784
Balance at January 2, 2015		95,764
In-Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Balance at October 3, 2014			17,970
Balance at January 2, 2015		17,970	17,970
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Balance at October 3, 2014			3,400
Balance at January 2, 2015		3,400	3,400
BinOptics Corporation [Member]
Finite-Lived Intangible Assets [Line Items]
Net intangibles acquired		220,234
Balance at October 3, 2014	84,980
Goodwill acquired		84,980
Balance at January 2, 2015	84,980
Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Balance at October 3, 2014		131,953
Other intangibles purchased		850
Balance at January 2, 2015		150,757
Acquired Technology [Member] | BinOptics Corporation [Member]
Finite-Lived Intangible Assets [Line Items]
Net intangibles acquired		17,954
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Balance at October 3, 2014			24,670
Balance at January 2, 2015		138,170	24,670
Customer Relationships [Member] | BinOptics Corporation [Member]
Finite-Lived Intangible Assets [Line Items]
Net intangibles acquired	113,500	113,500
Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Balance at January 2, 2015		3,800
Backlog [Member] | BinOptics Corporation [Member]
Finite-Lived Intangible Assets [Line Items]
Net intangibles acquired	$3,800	$3,800

Intangible_Assets_Summary_of_E

Intangible Assets - Summary of Estimated Amortization of Intangible Assets in Future Fiscal Years (Detail) (USD $)	Jan. 02, 2015
In Thousands, unless otherwise specified
Goodwill and Intangible Assets Disclosure [Abstract]
2015 (rest of fiscal year)	$31,256
2016	34,071
2017	34,143
2018	32,760
2019	31,019
Thereafter	89,977
Amortizable intangible assets - net	$253,226

Intangible_Assets_Additional_I

Intangible Assets - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended
	Jul. 31, 2013	Jan. 02, 2015	Jan. 03, 2014	Oct. 03, 2014
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization		$41,772,000		$35,360,000
Maximum potential payments to be made for technology licensing and transfer agreement	9,000,000
Amortization period of acquired technology	2016
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Period of potential payments to be made for technology licensing and transfer agreement	2016-07
Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization		33,100,000	27,800,000
Cost incurred in licensing and transfer of technology		7,000,000	4,100,000
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization		$8,600,000	$7,600,000

Stockholders_Equity_Additional

Stockholders' Equity - Additional Information (Detail) (USD $)	Jan. 02, 2015	Oct. 03, 2014
Statement of Stockholders' Equity [Abstract]
Preferred stock, par value	$0.00
Preferred stock, shares authorized	10,000,000
Common stock, par value	$0.00
Common stock, shares authorized	300,000,000
Unvested shares of restricted common stock excluded from outstanding shares	52,000	59,000

Income_Loss_Per_Share_Computat

Income (Loss) Per Share - Computation for Basic and Diluted Net Income (Loss) Per Share of Common Stock (Detail) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jan. 02, 2015	Jan. 03, 2014
Numerator:
Net loss	($6,306)	($8,921)
Denominator:
Weighted average common shares outstanding-basic	47,606	46,517
Weighted average common shares outstanding-diluted	47,606	46,517
Common stock loss per share:
Basic	($0.13)	($0.19)
Diluted	($0.13)	($0.19)
Stock Options Restricted Stock and Warrants [Member]
Denominator:
Dilutive effect of options, restricted stock and warrants	0	0

Income_Loss_Per_Share_Addition

Income (Loss) Per Share - Additional Information (Detail)	Jan. 02, 2015	Jan. 03, 2014
In Thousands, unless otherwise specified
Earnings Per Share [Abstract]
Common stock issuable upon exercise of stock options, restricted stock and warrants	1,599	1,267

Commitments_and_Contingencies_

Commitments and Contingencies - Additional Information (Detail) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Jan. 02, 2015	Oct. 03, 2014	Jun. 13, 2014
Commitments and Contingencies Disclosure [Abstract]
Outstanding non-cancelable purchase commitments	$3.50	$5.20
Bond value for secure injunction			$4

Restructurings_Summary_of_Cost

Restructurings - Summary of Costs Related to Restructuring Actions (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Jan. 03, 2014
Restructuring and Related Activities [Abstract]
Beginning Balance of accrued costs	$801
Current period charges - continuing operations	0	13,090
Payments	-734
Ending Balance of accrued costs	$67

ShareBased_Compensation_Plans_

Share-Based Compensation Plans - Effects of Stock-Based Compensation Expense Related to Stock-Based Awards to Employees and Non-Employees (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Jan. 03, 2014
Components Of Salaries And Benefits [Line Items]
Total stock-based compensation expense	$3,159	$1,845
Cost of Revenue [Member]
Components Of Salaries And Benefits [Line Items]
Total stock-based compensation expense	346	283
Research and Development [Member]
Components Of Salaries And Benefits [Line Items]
Total stock-based compensation expense	962	484
Selling, General and Administrative [Member]
Components Of Salaries And Benefits [Line Items]
Total stock-based compensation expense	$1,851	$1,078

ShareBased_Compensation_Plans_1

Share-Based Compensation Plans - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended	0 Months Ended
	Apr. 30, 2014	Jan. 02, 2015	Jan. 23, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted targeted vesting period	10 years	4 years
Percentage of options granted to vest at the end of One year		25.00%
Exercisable period of options granted		10 years
Vesting period of RSU granted		Annually over one to five years
Shares available for future grants		9,800,000
Additional awards issued		0
Total intrinsic value of options exercised		$806,000
Compensation cost expected to be recognized	3 years	2 years 4 months 24 days
Stock options granted		0
Stock options granted, fair value	3,500,000
Target price per share for any remaining unamortized compensation cost that will be recognized	$32.55
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted	405,000
Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target price per share for any remaining unamortized compensation cost that will be recognized			$32.55
Compensation expense to be recognized			2,500,000
Subsequent Event [Member] | Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Closing price per share			$34.79
Nonvested Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost		1,900,000
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost		18,800,000
Compensation cost expected to be recognized		3 years 4 months 24 days
Fair value of restricted stock awards vesting, total		$949,000

ShareBased_Compensation_Plans_2

Share-Based Compensation Plans - Summary of Stock Option Activity (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jan. 02, 2015	Oct. 03, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of Shares, Outstanding, Beginning balance	948
Number of Shares, Granted	0
Number of Shares, Exercised	-45
Number of Shares, Forfeited, canceled or expired	0
Number of Shares, Outstanding, Ending balance	903	948
Number of Shares, Options vested and expected to vest as of January 2, 2015	820
Number of Shares, Options vested and exercisable as of January 2, 2015	523
Weighted-Average Exercise Price Per Share, Outstanding, Beginning balance	$11.73
Weighted-Average Exercise Price Per Share, Granted	$0
Weighted-Average Exercise Price Per Share, Exercised	$8.64
Weighted-Average Exercise Price Per Share, Forfeited, canceled or expired	$0
Weighted-Average Exercise Price Per Share, Outstanding, Ending balance	$11.87	$11.73
Weighted-Average Exercise Price Per Share, Options vested and expected to vest as of January 2, 2015	$11.30
Weighted-Average Exercise Price Per Share, Options vested and exercisable as of January 2, 2015	$7.77
Weighted-Average Remaining Contractual Term (in years), Outstanding-January 2, 2015	6 years 6 months	6 years 7 months 6 days
Weighted-Average Remaining Contractual Term (in years), Options vested and expected to vest as of January 2, 2015	6 years 3 months 18 days
Weighted-Average Remaining Contractual Term (in years), Options vested and exercisable as of January 2, 2015	4 years 7 months 6 days
Aggregate Intrinsic Value, Outstanding, Beginning balance	$10,015
Aggregate Intrinsic Value, Outstanding, Ending balance	17,949	10,015
Aggregate Intrinsic Value, Options vested and expected to vest - October 3, 2014	16,781
Aggregate Intrinsic Value, Options exercisable - October 3, 2014	$12,622

ShareBased_Compensation_Plans_3

Share-Based Compensation Plans - Summary of Restricted Stock and Restricted Stock Units Activity (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of Shares, Issued and unvested - October 3, 2014	1,720
Number of Shares, Granted	83
Number of Shares, Vested and released	-41
Number of Shares, Forfeited, canceled or expired	-18
Number of Shares, Issued and unvested - January 2, 2015	1,744
Number of Shares, Shares expected to vest	1,566
Weighted-Average Remaining Contractual Term (in Years), Issued and unvested - October 3, 2014	2 years 7 months 6 days
Weighted-Average Remaining Contractual Term (in Years), Issued and unvested shares - January 2, 2015	2 years 4 months 24 days
Weighted-Average Remaining Contractual Term (in Years), Shares expected to vest	2 years 4 months 24 days
Aggregate Intrinsic Value, Issued and unvested - Beginning Balance	$37,203
Aggregate Intrinsic Value, Issued and unvested shares - Ending Balance	54,980
Aggregate Intrinsic Value, Shares expected to vest	$49,380

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended
	Jan. 02, 2015	Jan. 03, 2014	Oct. 03, 2014	Dec. 15, 2014
Income Taxes [Line Items]
U.S. federal statutory income tax rate	35.00%	35.00%
Unrecognized tax benefit, reduction in current deferred tax assets	$1.40
Unrecognized tax benefit	1,700,000		1,700,000
Other Noncurrent Liabilities [Member]
Income Taxes [Line Items]
Unrecognized tax benefit	300,000
BinOptics Corporation [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	38,400,000
Expiration beginning year for net operating loss carryforwards	2034
Federal research and development tax credit carryforwards	1,500,000
Deferred income tax liability	37,700,000
Deferred income tax asset	14,900,000			37,745,000
Net deferred income tax liability	$52,600,000

RelatedParty_Transactions_Addi

Related-Party Transactions - Additional Information (Detail) (USD $)	3 Months Ended
	Jan. 02, 2015	Jan. 03, 2014
Related Party Transaction [Abstract]
Minimum service requirements or payment obligations	$0
Notice period to terminate agreement	30 days
Other income-related party	$0	$78,000

Divestitures_Additional_Inform

Divestitures - Additional Information (Detail) (USD $)	1 Months Ended		12 Months Ended
	Feb. 28, 2014	31-May-14	Oct. 03, 2014
Divestitures [Line Items]
Gain (loss) on sale of asset	$0
Selling price of wireless business	12,000,000
Product Line One [Member]
Divestitures [Line Items]
Gain (loss) on sale of asset		0
Cash proceeds from sale of non-core assets			$12,000,000

Divestitures_Summary_of_Operat

Divestitures - Summary of Operating Results Through Dates of Divestiture Related to Divested Businesses (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Jan. 03, 2014
Income Statement [Abstract]
Revenue	$457
Loss before income taxes	-3,374
Benefit for income taxes	1,269
Loss from discontinued operations	($2,105)

Supplemental_Cash_Flow_Informa1

Supplemental Cash Flow Information - Additional Information (Detail) (USD $)	0 Months Ended
In Millions, unless otherwise specified	Jan. 02, 2015	Jan. 03, 2014
Equity [Abstract]
Unpaid amounts related to purchase of assets	$1.70	$1.20

Geographic_and_Significant_Cus2

Geographic and Significant Customer Information - Additional Information (Detail)	3 Months Ended
	Jan. 02, 2015	Jan. 03, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of reportable operating segment	1
Number of major customers	10
Sales Revenue, Net [Member] | Customer Concentration Risk [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	65.00%	65.00%

Geographic_and_Significant_Cus3

Geographic and Significant Customer Information - Summary of Different Geographic Regions (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Jan. 03, 2014	Oct. 03, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue by Geographic Region	$114,864	$84,154
Long-Lived Assets by Geographic Region	59,393		50,357
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue by Geographic Region	64,054	53,889
Long-Lived Assets by Geographic Region	49,219		42,031
International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue by Geographic Region	50,810	30,265
Long-Lived Assets by Geographic Region	$10,174		$8,326

Geographic_and_Significant_Cus4

Geographic and Significant Customer Information - Summary of Different Geographic Regions (Parenthetical) (Detail)	Jan. 02, 2015	Oct. 03, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic segment long-lived assets threshold	10.00%	10.00%
Asia-Pacific Region [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic segment long-lived assets threshold	13.00%	11.00%

Geographic_and_Significant_Cus5

Geographic and Significant Customer Information - Summary of Customer Concentrations as Percentage of Total Sales and Accounts Receivable (Detail) (Customer Concentration Risk [Member])	3 Months Ended		0 Months Ended
	Jan. 02, 2015	Jan. 03, 2014	Jan. 02, 2015	Oct. 03, 2014
Sales Revenue, Net [Member]
Revenue from External Customer [Line Items]
Concentration risk, percentage	65.00%	65.00%
Customera [Member] | Sales Revenue, Net [Member]
Revenue from External Customer [Line Items]
Concentration risk, percentage	19.00%	23.00%
Customera [Member] | Accounts Receivable [Member]
Revenue from External Customer [Line Items]
Concentration risk, percentage			16.00%	16.00%
Customer B [Member] | Sales Revenue, Net [Member]
Revenue from External Customer [Line Items]
Concentration risk, percentage	16.00%	24.00%
Customer B [Member] | Accounts Receivable [Member]
Revenue from External Customer [Line Items]
Concentration risk, percentage			13.00%	16.00%
Customer C [Member] | Sales Revenue, Net [Member]
Revenue from External Customer [Line Items]
Concentration risk, percentage	10.00%
Customer C [Member] | Accounts Receivable [Member]
Revenue from External Customer [Line Items]
Concentration risk, percentage			11.00%	7.00%